Connection

LEO LUZNIK to Graft vs Host Disease

This is a "connection" page, showing publications LEO LUZNIK has written about Graft vs Host Disease.
Connection Strength

15.907
  1. Relapse after allogeneic transplantation with post-transplant cyclophosphamide: Shattering myths and evolving insight. Blood Rev. 2023 11; 62:101093.
    View in: PubMed
    Score: 0.632
  2. How I prevent GVHD in high-risk patients: posttransplant cyclophosphamide and beyond. Blood. 2023 01 05; 141(1):49-59.
    View in: PubMed
    Score: 0.619
  3. Signatures of GVHD and relapse after posttransplant cyclophosphamide revealed by immune profiling and machine learning. Blood. 2022 01 27; 139(4):608-623.
    View in: PubMed
    Score: 0.580
  4. Randomized Phase III BMT CTN Trial of Calcineurin Inhibitor-Free Chronic Graft-Versus-Host Disease Interventions in Myeloablative Hematopoietic Cell Transplantation for Hematologic Malignancies. J Clin Oncol. 2022 02 01; 40(4):356-368.
    View in: PubMed
    Score: 0.574
  5. PTCy and "The Story of the Three Bears". Bone Marrow Transplant. 2021 04; 56(4):765-766.
    View in: PubMed
    Score: 0.534
  6. PTCY keeps on giving! Blood. 2019 09 12; 134(11):848-849.
    View in: PubMed
    Score: 0.492
  7. Mechanism of action of posttransplantation cyclophosphamide: more than meets the eye. J Clin Invest. 2019 05 06; 129(6):2189-2191.
    View in: PubMed
    Score: 0.480
  8. Development of Grade II Acute Graft-versus-Host Disease Is Associated with Improved Survival after Myeloablative HLA-Matched Bone Marrow Transplantation using Single-Agent Post-Transplant Cyclophosphamide. Biol Blood Marrow Transplant. 2019 06; 25(6):1128-1135.
    View in: PubMed
    Score: 0.468
  9. Notching up B-cell pathology in chronic GVHD. Blood. 2017 11 09; 130(19):2053-2054.
    View in: PubMed
    Score: 0.433
  10. Grade II Acute Graft-versus-Host Disease and Higher Nucleated Cell Graft Dose Improve Progression-Free Survival after HLA-Haploidentical Transplant with Post-Transplant Cyclophosphamide. Biol Blood Marrow Transplant. 2018 02; 24(2):343-352.
    View in: PubMed
    Score: 0.431
  11. Comparable composite endpoints after HLA-matched and HLA-haploidentical transplantation with post-transplantation cyclophosphamide. Haematologica. 2017 02; 102(2):391-400.
    View in: PubMed
    Score: 0.402
  12. Might haplo "be the (better) match"? Blood. 2016 Feb 18; 127(7):799-800.
    View in: PubMed
    Score: 0.384
  13. Modern approaches to HLA-haploidentical blood or marrow transplantation. Nat Rev Clin Oncol. 2016 Jan; 13(1):10-24.
    View in: PubMed
    Score: 0.371
  14. Single-agent GVHD prophylaxis with posttransplantation cyclophosphamide after myeloablative, HLA-matched BMT for AML, ALL, and MDS. Blood. 2014 Dec 11; 124(25):3817-27.
    View in: PubMed
    Score: 0.350
  15. Multi-institutional study of post-transplantation cyclophosphamide as single-agent graft-versus-host disease prophylaxis after allogeneic bone marrow transplantation using myeloablative busulfan and fludarabine conditioning. J Clin Oncol. 2014 Nov 01; 32(31):3497-505.
    View in: PubMed
    Score: 0.349
  16. Donor CD4+ Foxp3+ regulatory T cells are necessary for posttransplantation cyclophosphamide-mediated protection against GVHD in mice. Blood. 2014 Sep 25; 124(13):2131-41.
    View in: PubMed
    Score: 0.346
  17. Post-transplantation cyclophosphamide for tolerance induction in HLA-haploidentical bone marrow transplantation. Semin Oncol. 2012 Dec; 39(6):683-93.
    View in: PubMed
    Score: 0.307
  18. High-dose cyclophosphamide for graft-versus-host disease prevention. Curr Opin Hematol. 2010 Nov; 17(6):493-9.
    View in: PubMed
    Score: 0.266
  19. High-dose cyclophosphamide as single-agent, short-course prophylaxis of graft-versus-host disease. Blood. 2010 Apr 22; 115(16):3224-30.
    View in: PubMed
    Score: 0.253
  20. STAT3 signaling in CD4+ T cells is critical for the pathogenesis of chronic sclerodermatous graft-versus-host disease in a murine model. J Immunol. 2010 Jan 15; 184(2):764-74.
    View in: PubMed
    Score: 0.250
  21. HLA-haploidentical bone marrow transplantation for hematologic malignancies using nonmyeloablative conditioning and high-dose, posttransplantation cyclophosphamide. Biol Blood Marrow Transplant. 2008 Jun; 14(6):641-50.
    View in: PubMed
    Score: 0.225
  22. Chronic graft-versus-host disease: unresolved complication or ancient history? Blood. 2024 09 26; 144(13):1363-1373.
    View in: PubMed
    Score: 0.174
  23. Chronic GvHD NIH Consensus Project Biology Task Force: evolving path to personalized treatment of chronic GvHD. Blood Adv. 2023 09 12; 7(17):4886-4902.
    View in: PubMed
    Score: 0.162
  24. Alternative donor BMT with posttransplant cyclophosphamide as initial therapy for acquired severe aplastic anemia. Blood. 2023 06 22; 141(25):3031-3038.
    View in: PubMed
    Score: 0.160
  25. Allogeneic Blood or Marrow Transplantation with High-Dose Post-Transplantation Cyclophosphamide for Acute Lymphoblastic Leukemia in Patients Age =55 Years. Transplant Cell Ther. 2023 03; 29(3):182.e1-182.e8.
    View in: PubMed
    Score: 0.154
  26. Three-Year Outcomes in Recipients of Mismatched Unrelated Bone Marrow Donor Transplants Using Post-Transplantation Cyclophosphamide: Follow-Up from a National Marrow Donor Program-Sponsored Prospective Clinical Trial. Transplant Cell Ther. 2023 03; 29(3):208.e1-208.e6.
    View in: PubMed
    Score: 0.154
  27. Allogeneic Blood or Marrow Transplantation with Post-Transplantation Cyclophosphamide for Peripheral T Cell Lymphoma: The Importance of Graft Source. Transplant Cell Ther. 2023 04; 29(4):267.e1-267.e5.
    View in: PubMed
    Score: 0.154
  28. Mismatched donor transplantation with post-transplantation cyclophosphamide for advanced cutaneous T-cell lymphoma: a single-center retrospective study. Leuk Lymphoma. 2022 12; 63(12):2987-2991.
    View in: PubMed
    Score: 0.150
  29. Donor T cell DNMT3a regulates alloreactivity in mouse models of hematopoietic stem cell transplantation. J Clin Invest. 2022 07 01; 132(13).
    View in: PubMed
    Score: 0.149
  30. BET-bromodomain and EZH2 inhibitor-treated chronic GVHD mice have blunted germinal centers with distinct transcriptomes. Blood. 2022 05 12; 139(19):2983-2997.
    View in: PubMed
    Score: 0.148
  31. Post-Transplantation Cyclophosphamide-Based Graft- versus-Host Disease Prophylaxis with Nonmyeloablative Conditioning for Blood or Marrow Transplantation for Myelofibrosis. Transplant Cell Ther. 2022 05; 28(5):259.e1-259.e11.
    View in: PubMed
    Score: 0.145
  32. Allogeneic Blood or Marrow Transplantation with Nonmyeloablative Conditioning and High-Dose Cyclophosphamide-Based Graft-versus-Host Disease Prophylaxis for Secondary Central Nervous System Lymphoma. Transplant Cell Ther. 2021 10; 27(10):863.e1-863.e5.
    View in: PubMed
    Score: 0.140
  33. National Institutes of Health Consensus Development Project on Criteria for Clinical Trials in Chronic Graft-versus-Host Disease: I. The 2020 Etiology and Prevention Working Group Report. Transplant Cell Ther. 2021 06; 27(6):452-466.
    View in: PubMed
    Score: 0.136
  34. Allogeneic transplantation for Ph+ acute lymphoblastic leukemia with posttransplantation cyclophosphamide. Blood Adv. 2020 10 27; 4(20):5078-5088.
    View in: PubMed
    Score: 0.133
  35. Thrombotic Microangiopathy after Post-Transplantation Cyclophosphamide-Based Graft-versus-Host Disease Prophylaxis. Biol Blood Marrow Transplant. 2020 12; 26(12):2306-2310.
    View in: PubMed
    Score: 0.132
  36. Shortened-Duration Immunosuppressive Therapy after Nonmyeloablative, Related HLA-Haploidentical or Unrelated Peripheral Blood Grafts and Post-Transplantation Cyclophosphamide. Biol Blood Marrow Transplant. 2020 11; 26(11):2075-2081.
    View in: PubMed
    Score: 0.131
  37. Non-Myeloablative Allogeneic Transplantation with Post-Transplant Cyclophosphamide after Immune Checkpoint Inhibition for Classic Hodgkin Lymphoma: A Retrospective Cohort Study. Biol Blood Marrow Transplant. 2020 09; 26(9):1679-1688.
    View in: PubMed
    Score: 0.130
  38. Haploidentical BMT for severe aplastic anemia with intensive GVHD prophylaxis including posttransplant cyclophosphamide. Blood Adv. 2020 04 28; 4(8):1770-1779.
    View in: PubMed
    Score: 0.128
  39. Post-transplantation Cyclophosphamide: From HLA-Haploidentical to Matched-Related and Matched-Unrelated Donor Blood and Marrow Transplantation. Front Immunol. 2020; 11:636.
    View in: PubMed
    Score: 0.128
  40. Inhibition of inositol kinase B controls acute and chronic graft-versus-host disease. Blood. 2020 01 02; 135(1):28-40.
    View in: PubMed
    Score: 0.126
  41. Allogeneic Haploidentical Blood or Marrow Transplantation with Post-Transplantation Cyclophosphamide in Chronic Lymphocytic Leukemia. Biol Blood Marrow Transplant. 2020 03; 26(3):502-508.
    View in: PubMed
    Score: 0.124
  42. Clinical applications of donor lymphocyte infusion from an HLA-haploidentical donor: consensus recommendations from the Acute Leukemia Working Party of the EBMT. Haematologica. 2020 01; 105(1):47-58.
    View in: PubMed
    Score: 0.123
  43. Haploidentical transplantation using posttransplant cyclophosphamide as GVHD prophylaxis in patients over age 70. Blood Adv. 2019 09 10; 3(17):2608-2616.
    View in: PubMed
    Score: 0.123
  44. Severe Cytokine Release Syndrome after Haploidentical Peripheral Blood Stem Cell Transplantation. Biol Blood Marrow Transplant. 2019 12; 25(12):2431-2437.
    View in: PubMed
    Score: 0.122
  45. Post-transplant cyclophosphamide use in matched HLA donors: a review of literature and future application. Bone Marrow Transplant. 2020 01; 55(1):40-47.
    View in: PubMed
    Score: 0.120
  46. Activated Allogeneic Donor-derived Marrow-infiltrating Lymphocytes Display Measurable In Vitro Antitumor Activity. J Immunother. 2019 04; 42(3):73-80.
    View in: PubMed
    Score: 0.119
  47. Targeting PI3Kd function for amelioration of murine chronic graft-versus-host disease. Am J Transplant. 2019 06; 19(6):1820-1830.
    View in: PubMed
    Score: 0.119
  48. Effect of increased dose of total body irradiation on graft failure associated with HLA-haploidentical transplantation in patients with severe haemoglobinopathies: a prospective clinical trial. Lancet Haematol. 2019 Apr; 6(4):e183-e193.
    View in: PubMed
    Score: 0.119
  49. The European Society for Blood and Marrow Transplantation (EBMT) consensus recommendations for donor selection in haploidentical hematopoietic cell transplantation. Bone Marrow Transplant. 2020 01; 55(1):12-24.
    View in: PubMed
    Score: 0.119
  50. Small-molecule BCL6 inhibitor effectively treats mice with nonsclerodermatous chronic graft-versus-host disease. Blood. 2019 01 03; 133(1):94-99.
    View in: PubMed
    Score: 0.115
  51. Blood and Marrow Transplant Clinical Trials Network Report on the Development of Novel Endpoints and Selection of Promising Approaches for Graft-versus-Host Disease Prevention Trials. Biol Blood Marrow Transplant. 2018 06; 24(6):1274-1280.
    View in: PubMed
    Score: 0.109
  52. Allogeneic Blood or Marrow Transplantation with Post-Transplantation Cyclophosphamide as Graft-versus-Host Disease Prophylaxis in Multiple Myeloma. Biol Blood Marrow Transplant. 2017 Nov; 23(11):1903-1909.
    View in: PubMed
    Score: 0.106
  53. Pirfenidone ameliorates murine chronic GVHD through inhibition of macrophage infiltration and TGF-? production. Blood. 2017 05 04; 129(18):2570-2580.
    View in: PubMed
    Score: 0.103
  54. Plasma-derived proteomic biomarkers in human leukocyte antigen-haploidentical or human leukocyte antigen-matched bone marrow transplantation using post-transplantation cyclophosphamide. Haematologica. 2017 05; 102(5):932-940.
    View in: PubMed
    Score: 0.102
  55. Low immunosuppressive burden after HLA-matched related or unrelated BMT using posttransplantation cyclophosphamide. Blood. 2017 03 09; 129(10):1389-1393.
    View in: PubMed
    Score: 0.102
  56. Induction of Major Histocompatibility Complex-mismatched Mouse Lung Allograft Acceptance With Combined Donor Bone Marrow: Lung Transplant Using a 12-Hour Nonmyeloablative Conditioning Regimen. Transplantation. 2016 Dec; 100(12):e140-e146.
    View in: PubMed
    Score: 0.101
  57. The Biology of Chronic Graft-versus-Host Disease: A Task Force Report from the National Institutes of Health Consensus Development Project on Criteria for Clinical Trials in Chronic Graft-versus-Host Disease. Biol Blood Marrow Transplant. 2017 Feb; 23(2):211-234.
    View in: PubMed
    Score: 0.100
  58. Therapeutic regulatory T-cell adoptive transfer ameliorates established murine chronic GVHD in a CXCR5-dependent manner. Blood. 2016 08 18; 128(7):1013-7.
    View in: PubMed
    Score: 0.099
  59. Targeted Rho-associated kinase 2 inhibition suppresses murine and human chronic GVHD through a Stat3-dependent mechanism. Blood. 2016 04 28; 127(17):2144-54.
    View in: PubMed
    Score: 0.097
  60. Haploidentical bone marrow and stem cell transplantation: experience with post-transplantation cyclophosphamide. Semin Hematol. 2016 Apr; 53(2):90-7.
    View in: PubMed
    Score: 0.095
  61. Therapeutic drug monitoring for either oral or intravenous busulfan when combined with pre- and post-transplantation cyclophosphamide. Leuk Lymphoma. 2016; 57(3):666-75.
    View in: PubMed
    Score: 0.094
  62. Single-Agent Post-Transplantation Cyclophosphamide as Graft-versus-Host Disease Prophylaxis after Human Leukocyte Antigen-Matched Related Bone Marrow Transplantation for Pediatric and Young Adult Patients with Hematologic Malignancies. Biol Blood Marrow Transplant. 2016 Jan; 22(1):112-8.
    View in: PubMed
    Score: 0.093
  63. Phase II Study of Nonmyeloablative Allogeneic Bone Marrow Transplantation for B Cell Lymphoma with Post-Transplantation Rituximab and Donor Selection Based First on Non-HLA Factors. Biol Blood Marrow Transplant. 2015 Dec; 21(12):2115-2122.
    View in: PubMed
    Score: 0.092
  64. Targeting Syk-activated B cells in murine and human chronic graft-versus-host disease. Blood. 2015 Jun 25; 125(26):4085-94.
    View in: PubMed
    Score: 0.090
  65. Risk-stratified outcomes of nonmyeloablative HLA-haploidentical BMT with high-dose posttransplantation cyclophosphamide. Blood. 2015 May 07; 125(19):3024-31.
    View in: PubMed
    Score: 0.090
  66. Alternative Donor Allogeneic Hematopoietic Cell Transplantation for Acute Myeloid Leukemia. Semin Hematol. 2015 Jul; 52(3):232-42.
    View in: PubMed
    Score: 0.090
  67. OCTET-CY: a phase II study to investigate the efficacy of post-transplant cyclophosphamide as sole graft-versus-host prophylaxis after allogeneic peripheral blood stem cell transplantation. Eur J Haematol. 2016 Jan; 96(1):27-35.
    View in: PubMed
    Score: 0.090
  68. Ibrutinib treatment ameliorates murine chronic graft-versus-host disease. J Clin Invest. 2014 Nov; 124(11):4867-76.
    View in: PubMed
    Score: 0.087
  69. Are alternative donors really still "alternative?". Biol Blood Marrow Transplant. 2014 Oct; 20(10):1463-4.
    View in: PubMed
    Score: 0.086
  70. Increased T follicular helper cells and germinal center B cells are required for cGVHD and bronchiolitis obliterans. Blood. 2014 Jun 19; 123(25):3988-98.
    View in: PubMed
    Score: 0.085
  71. Experts' considerations on HLA-haploidentical stem cell transplantation. Eur J Haematol. 2014 Sep; 93(3):187-97.
    View in: PubMed
    Score: 0.085
  72. Absence of post-transplantation lymphoproliferative disorder after allogeneic blood or marrow transplantation using post-transplantation cyclophosphamide as graft-versus-host disease prophylaxis. Biol Blood Marrow Transplant. 2013 Oct; 19(10):1514-7.
    View in: PubMed
    Score: 0.080
  73. Outcomes of related donor HLA-identical or HLA-haploidentical allogeneic blood or marrow transplantation for peripheral T cell lymphoma. Biol Blood Marrow Transplant. 2013 Apr; 19(4):602-6.
    View in: PubMed
    Score: 0.078
  74. Partially mismatched transplantation and human leukocyte antigen donor-specific antibodies. Biol Blood Marrow Transplant. 2013 Apr; 19(4):647-52.
    View in: PubMed
    Score: 0.078
  75. Lymphocyte phenotype during therapy for acute graft-versus-host disease: a brief report from BMT-CTN 0302. Biol Blood Marrow Transplant. 2013 Mar; 19(3):481-5.
    View in: PubMed
    Score: 0.077
  76. Donor B-cell alloantibody deposition and germinal center formation are required for the development of murine chronic GVHD and bronchiolitis obliterans. Blood. 2012 Feb 09; 119(6):1570-80.
    View in: PubMed
    Score: 0.071
  77. 5-azacytidine as salvage treatment in relapsed myeloid tumors after allogeneic bone marrow transplantation. Biol Blood Marrow Transplant. 2011 May; 17(5):754-8.
    View in: PubMed
    Score: 0.066
  78. Post-transplantation cyclophosphamide for GVHD prophylaxis in severe aplastic anemia. Bone Marrow Transplant. 2011 Jul; 46(7):1012-3.
    View in: PubMed
    Score: 0.066
  79. High-dose, post-transplantation cyclophosphamide to promote graft-host tolerance after allogeneic hematopoietic stem cell transplantation. Immunol Res. 2010 Jul; 47(1-3):65-77.
    View in: PubMed
    Score: 0.065
  80. Myeloablative allogeneic bone marrow transplant using T cell depleted allografts followed by post-transplant GM-CSF in high-risk myelodysplastic syndromes. Leuk Res. 2008 Sep; 32(9):1439-47.
    View in: PubMed
    Score: 0.055
  81. Host-derived Langerhans cells persist after MHC-matched allografting independent of donor T cells and critically influence the alloresponses mediated by donor lymphocyte infusions. J Immunol. 2006 Oct 01; 177(7):4414-25.
    View in: PubMed
    Score: 0.050
  82. Graft-versus-host reactions and the effectiveness of donor lymphocyte infusions. Biol Blood Marrow Transplant. 2006 Apr; 12(4):414-21.
    View in: PubMed
    Score: 0.048
  83. Nonmyeloablative alternative donor transplants. Curr Opin Oncol. 2003 Mar; 15(2):121-6.
    View in: PubMed
    Score: 0.039
  84. Successful therapy of metastatic cancer using tumor vaccines in mixed allogeneic bone marrow chimeras. Blood. 2003 Feb 15; 101(4):1645-52.
    View in: PubMed
    Score: 0.038
  85. Donor lymphocyte infusions to treat hematologic malignancies in relapse after allogeneic blood or marrow transplantation. Cancer Control. 2002 Mar-Apr; 9(2):123-37.
    View in: PubMed
    Score: 0.036
  86. Durable engraftment of major histocompatibility complex-incompatible cells after nonmyeloablative conditioning with fludarabine, low-dose total body irradiation, and posttransplantation cyclophosphamide. Blood. 2001 Dec 01; 98(12):3456-64.
    View in: PubMed
    Score: 0.036
  87. National Marrow Donor Program-Sponsored Multicenter, Phase II Trial of HLA-Mismatched Unrelated Donor Bone Marrow Transplantation Using Post-Transplant Cyclophosphamide. J Clin Oncol. 2021 06 20; 39(18):1971-1982.
    View in: PubMed
    Score: 0.034
  88. Allogeneic bone marrow transplantation with post-transplant cyclophosphamide for patients with HIV and haematological malignancies: a feasibility study. Lancet HIV. 2020 09; 7(9):e602-e610.
    View in: PubMed
    Score: 0.033
  89. T Cell Repertoire Evolution after Allogeneic Bone Marrow Transplantation: An Organizational Perspective. Biol Blood Marrow Transplant. 2019 05; 25(5):868-882.
    View in: PubMed
    Score: 0.029
  90. Haploidentical Bone Marrow Transplantation with Post-Transplant Cyclophosphamide Using Non-First-Degree Related Donors. Biol Blood Marrow Transplant. 2018 05; 24(5):1099-1102.
    View in: PubMed
    Score: 0.028
  91. Shortened-Duration Tacrolimus after Nonmyeloablative, HLA-Haploidentical Bone Marrow Transplantation. Biol Blood Marrow Transplant. 2018 05; 24(5):1022-1028.
    View in: PubMed
    Score: 0.027
  92. Nonmyeloablative Haploidentical Bone Marrow Transplantation with Post-Transplantation Cyclophosphamide for Pediatric and Young Adult Patients with High-Risk Hematologic Malignancies. Biol Blood Marrow Transplant. 2017 Feb; 23(2):325-332.
    View in: PubMed
    Score: 0.025
  93. How do we choose the best donor for T-cell-replete, HLA-haploidentical transplantation? J Hematol Oncol. 2016 Apr 12; 9:35.
    View in: PubMed
    Score: 0.024
  94. Proceedings from the Second Haploidentical Stem Cell Transplantation Symposium-Haplo2014, San Francisco, California, December 4, 2014. Biol Blood Marrow Transplant. 2016 Apr; 22(4):594-604.
    View in: PubMed
    Score: 0.024
  95. Outcomes of Nonmyeloablative HLA-Haploidentical Blood or Marrow Transplantation With High-Dose Post-Transplantation Cyclophosphamide in Older Adults. J Clin Oncol. 2015 Oct 01; 33(28):3152-61.
    View in: PubMed
    Score: 0.023
  96. Haploidentical transplant with posttransplant cyclophosphamide vs matched unrelated donor transplant for acute myeloid leukemia. Blood. 2015 Aug 20; 126(8):1033-40.
    View in: PubMed
    Score: 0.023
  97. HLA-haploidentical donor lymphocyte infusions for patients with relapsed hematologic malignancies after related HLA-haploidentical bone marrow transplantation. Biol Blood Marrow Transplant. 2014 Mar; 20(3):314-8.
    View in: PubMed
    Score: 0.021
  98. Human leukocyte antigen-haploidentical hematopoietic stem cell transplant for a patient with histiocytic sarcoma. Leuk Lymphoma. 2013 Mar; 54(3):655-7.
    View in: PubMed
    Score: 0.019
  99. Nonmyeloablative HLA-haploidentical bone marrow transplantation with high-dose posttransplantation cyclophosphamide: effect of HLA disparity on outcome. Biol Blood Marrow Transplant. 2010 Apr; 16(4):482-9.
    View in: PubMed
    Score: 0.016
  100. Comparison of outcomes of HLA-matched related, unrelated, or HLA-haploidentical related hematopoietic cell transplantation following nonmyeloablative conditioning for relapsed or refractory Hodgkin lymphoma. Biol Blood Marrow Transplant. 2008 Nov; 14(11):1279-87.
    View in: PubMed
    Score: 0.014
Connection Strength

The connection strength for concepts is the sum of the scores for each matching publication.

Publication scores are based on many factors, including how long ago they were written and whether the person is a first or senior author.