BMJ Publishing Group Limited (BMJ) disclaims all liability and responsibility arising from any reliance Supplemental material placed on this supplemental material which has been supplied by the author(s) BMJ Open Yonsei University College of Medicine Gangnam Severance Hospital PLATELET-001_All Participating Site IRB/EC List_Ver.1.0_07May2020 Confidential PLATELET-001 Site Institutional Review Board(IRB) / Site Name Address No. Ethic Committee(EC) Yonsei University College of Medicine Gangnam Severance Yonsei University College of Medicine Yonsei University Gangnam Severance Hospital 01 Hospital, 211, Eonju-ro, Gangnam-gu, Seoul, Republic of Korea, Gangnam Severance Hospital Institutional Review Board 06273 Gachon University Gil Medical Center Gachon University Gil Medical Center, 21, Namdong-daero 02 Gachon University Gil Medical Center Institutional Review Board 774beon-gil, Namdong-gu, Incheon, Republic of Korea, 21565 Catholic Kwandong University Catholic Kwandong University International 25, Simgok-ro 100beon-gil, Seo-gu, Incheon, Republic of Korea, 03 International St.Mary`s Hospital St.Mary`s Hospital Institutional Review Board 22711 KyungHee University Hospital Kyung Hee University Korean Medicine Hospital Kyung Hee University Hospital at Gangdong, 892, Dongnam-ro, 04 at Gangdong at Gangdong Institutional Review Board Gangdong-gu, Seoul, Republic of Korea, 05278 Kangwon National University Hospital Kangwan National University Hospital, 156, Baengnyeong-ro, 05 Kangwan National University Hospital Institutional Review Board Chuncheon-si, Gangwon-do, Republic of Korea, 24289 Kyungpook National University Hospital Kyungpook National University Hospital, 130, Dongdeok-ro, 06 Kyungpook National University Hospital Institutional Review Board Jung-gu, Daegu, Republic of Korea, 41944 Kyung Hee University Hospital KyungHee University Hospital, 23, Kyungheedae-ro, 07 KyungHee University Hospital Institutional Review Board, Dongdaemun-gu, Seoul, Republic of Korea, 02447 The Institutional Review Board Keimyung University Dongsan Hospital, 56, Dalseong-ro, Jung- 08 Keimyung University Dongsan Hospital of Keimyung University Dongsan Hospital gu, Daegu, Republic of Korea, 41931 Korea University Guro Hospital Korea University Guro Hospital , 148, Gurodong-ro, Guro-gu, 09 Korea University Guro Hospital Institutional Review Board Seoul, Republic of Korea, 08308 Korea University Ansan Hospital Korea University Ansan Hospital, 123, Jeokgeum-ro, Danwon- 10 Korea University Ansan Hospital Institutional Review Board gu, Ansan-si, Gyeonggi-do, Republic of Korea, 15355 Korea University Anam Hospital Korea University Anam Hospital, 73, Goryeodae-ro, Seongbuk- 11 Korea University Anam Hospital Institutional Review Board gu, Seoul, Republic of Korea, 02841 Kosin University Gospel Hospital Kosin University Gospel Hospital, 262, Gamcheon-ro, Seo-gu, 12 Kosin University Gospel Hospital Institutional Review Board Busan, Republic of Korea, 49267 National Medical Center National Medical Center, 245, Eulji-ro, Jung-gu, Seoul, Republic 13 National Medical Center Institutional Review Board of Korea, 04564 National Health Insurance Service Ilsan Hospital, 100, Ilsan-ro, National Health Insurance Service National Health Insurance Service Ilsan Hospital 14 Ilsandong-gu, Goyang-si, Gyeonggi-do, Republic of Korea, Ilsan Hospital Institutional Review Board 10444 Gimpo Woori Hospital, 11, Gamam-ro, Gimpo-si, Gyeonggi-do, 15 Gimpo Woori Hospital Gimpo Woori Hospital Institutional Review Board Republic of Korea, 10099 Page 1 of 3 Song T-J, et al. BMJ Open 2020; 10:e038031. doi: 10.1136/bmjopen-2020-038031 BMJ Publishing Group Limited (BMJ) disclaims all liability and responsibility arising from any reliance Supplemental material placed on this supplemental material which has been supplied by the author(s) BMJ Open Yonsei University College of Medicine Gangnam Severance Hospital PLATELET-001_All Participating Site IRB/EC List_Ver.1.0_07May2020 Confidential PLATELET-001 Site Institutional Review Board(IRB) / Site Name Address No. Ethic Committee(EC) Dong-A University Hospital Dong-A University Hospital, 26, Daesingongwon-ro, Seo-gu, 16 Dong-A University Hospital Institutional Review Board Busan, Republic of Korea, 49201 Myongji Hospital, 55, Hwasu-ro 14beon-gil, Deogyang-gu, 17 Myongji Hospital Myongji Hospital Institutional Review Board Goyang-si, Gyeonggi-do, Republic of Korea, 10475 Seoul National University Bundang Hospital, 82, Gumi-ro 173 Seoul National University Bundang Seoul National University Bundang Hospital 18 beon-gil, Bundang-gu, Seongnam-si, Gyeonggi-do, Republic of Hospital Institutional Review Board Korea, 13620 Seoul National University Hospital Seoul National University Hospital, 101, Daehak-ro, Jongno-gu, 19 Seoul National University Hospital Institutional Review Board Seoul, Republic of Korea, 03080 Seoul Medical Center, 156, Sinnae-ro, Jungnang-gu, Seoul, 20 Seoul Medical Center Seoul Medical Center Institutional Review Board Republic of Korea, 02053 Institutional Review Board Yonsei University Wonju Severance Yonsei University Wonju Severance Christian Hospital, 20, Ilsan- 21 for Human Research Yonsei University Christian Hospital ro, Wonju-si, Gangwon-do, Republic of Korea, 26426 Wonju Severance Christian Hospital Yonsei University Health System Yonsei University Health System, Severance Yonsei University Health System Severance Hospital, 50-1, 22 Severance Hospital Hospital Institutional Review Board Yonsei-ro, Seodaemun-gu, Seoul, Republic of Korea, 03722 23 NA: Site Cancellation NA: Site Cancellation NA: Site Cancellation Wonkwang University Hospital Wonkwang University Hospital, 895, Muwang-ro, Iksan-si, 24 Wonkwang University Hospital Institutional Review Board Jeollabuk-do, Republic of Korea, 54538 Daejeon Eulji Medical Center Eulji Eulji University Hospital (Daejeon) Daejeon Eulji Medical Center, Eulji University, 95, Dunsanseo-ro, 25 niversity Institutional Review Board Seo-gu, Daejeon, Republic of Korea, 35233 Institutional Review Board Ewha Womans University Seoul Hospital, 260, Gonghang- 26 Ewha Womans University Seoul Hospital of Ewha Woman's University Seoul Hospital daero, Gangseo-gu, Seoul, Republic of Korea, 07804 Institutional Review Board Inje University Busan Paik Hospital, 75, Bokji-ro, Busanjin-gu, 27 Inje University Busan Paik Hospital of Inje University Busan Paik Hospital Busan, Republic of Korea, 47392 Inje University Sanggye Paik Hospital Inje University Sanggye Paik Hospital, 1342, Dongil-ro, Nowon- 28 Inje University Sanggye Paik Hospital Institutional Review Board gu, Seoul, Republic of Korea, 01757 Inha University Hospital Inha University Hospital, 27, Inhang-ro, Jung-gu, Incheon, 29 Inha University Hospital Institutional Review Board Republic of Korea, 22332 Chonnam National University Hospital Chonnam National University Hospital, 42, Jebong-ro, Dong-gu, 30 Chonnam National University Hospital Institutional Review Board Gwangju, Republic of Korea, 61469 Page 2 of 3 Song T-J, et al. BMJ Open 2020; 10:e038031. doi: 10.1136/bmjopen-2020-038031 BMJ Publishing Group Limited (BMJ) disclaims all liability and responsibility arising from any reliance Supplemental material placed on this supplemental material which has been supplied by the author(s) BMJ Open Yonsei University College of Medicine Gangnam Severance Hospital PLATELET-001_All Participating Site IRB/EC List_Ver.1.0_07May2020 Confidential PLATELET-001 Site Institutional Review Board(IRB) / Site Name Address No. Ethic Committee(EC) Chosun University Hospital Chosun University Hospital, 365, Pilmun-daero, Dong-gu, 31 Chosun University Hospital Institutional Review Board Gwangju, Republic of Korea, 61453 Chung-Ang University Hospital Chung-Ang University Hospital, 102, Heukseok-ro, Dongjak-gu, 32 Chung-Ang University Hospital Institutional Review Board Seoul, Republic of Korea, 06973 Changwon Fatima Hospital Changwon Fatima Hospital, 45, Changi-daero, Uichang-gu, 33 Changwon Fatima Hospital Institutional Review Board Changwon-si, Gyeongsangnam-do, Republic of Korea, 51394 Kangdong Sacred Heart Hospital Kangdong Sacred Heart Hospital, 150, Seongan-ro, Gangdong- 34 Kangdong Sacred Heart Hospital Institutional Review Board gu, Seoul, Republic of Korea, 05355 Hallym University Dongtan Sacred Heart Hospital, 7, Hallym University Dongtan Hallym University Dongtan Sacred Heart Hospital 35 Keunjaebong-gil, Hwaseong-si, Gyeonggi-do, Republic of Korea, Sacred Heart Hospital Institutional Review Board 18450 Hallym University Chuncheon Hallym University Chuncheon Sacred Heart Hallym University Chuncheon Sacred Heart Hospital, 77, Sakju- 36 Sacred Heart Hospital Hospital Institutional Review Board ro, Chuncheon-si, Gangwon-do, Republic of Korea, 24253 Institutional Review Board Hanyang University Seoul Hospital, 222-1, Wangsimni-ro, 37 Hanyang University Seoul Hospital of Hanyang University Hospital Seongdong-gu, Seoul, Republic of Korea, 04763 Hallym University Sacred Heart Hospital, 22, Gwanpyeong-ro Hallym University Sacred Heart Hospital 38 Hallym University Sacred Heart Hospital 170beon-gil, Dongan-gu, Anyang-si, Gyeonggi-do, Republic of Institutional Review Board Korea, 14068 Page 3 of 3 Song T-J, et al. BMJ Open 2020; 10:e038031. doi: 10.1136/bmjopen-2020-038031.