Robert F Sidonio Jr., MD^1*, Angela C Weyand, MD², Tammuella Chrisentery-Singleton, MD³, Martin Chandler^4*, Carol Fedor, RN^4*, Priscilla Driscoll-Shempp^5*, Michelle Kirby^5* and Jorge Caicedo, MD^5*

¹Emory University School of Medicine, Atlanta, GA
²University of Michigan Medical School, Ann Arbor, MI
³American Thrombosis and Hemostasis Network, New Orleans, LA
⁴American Thrombosis and Hemostasis Network, Rochester, NY
⁵Takeda Pharmaceuticals USA, Inc., Lexington, MA

Anne De Vaan, MD^1*, Jeroen Eikenboom, MD, PhD², Marieke JHA Kruip, MD, PhD^3*, Marieke C Punt, MD, PhD^1*, Michiel Coppens, MD, PhD^4,5*, Laurens Nieuwenhuizen, MD PhD^6*, Saskia EM Schols, MD, PhD^7*, Anja BU Mäkelburg, MD, PhD^8*, Floor CJI Moenen, MD, PhD^9*, Hans JJ Duvekot, Md, PhD^10*, Marjolein Peters, MD, PhD^11*, Annemieke JM Middeldorp, MD, PhD^12*, Kitty WM Bloemenkamp, MD, PhD^13*, Roger EG Schutgens, MD, PhD, MSc^1*, Titia AT Lely, MD, PhD^13* and Karin PM Van Galen, MD, PhD^1*

¹Center for Benign Hematology, Thrombosis and Hemostasis - Van Creveldkliniek, University Medical Center Utrecht, Utrecht University, Utrecht, Netherlands
²Department of Internal Medicine, Division of Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, Netherlands
³Department of Hematology, Erasmus MC, Erasmus University Medical Center Rotterdam, Rotterdam, NLD
⁴Amsterdam University Medical Centers, Department of Vascular Medicine, University of Amsterdam and Amsterdam Cardiovascular Sciences, Pulmonary Hypertension & Thrombosis, Amsterdam, Netherlands
⁵Amsterdam Cardiovascular Sciences, Pulmonary Hypertension & Thrombosis, Amsterdam, Netherlands
⁶Department of Internal Medicine, Máxima Medisch Centrum, Eindhoven, Netherlands
⁷Department of Hematology, Radboud University Medical Center, Nijmegen, Netherlands
⁸Department of Hematology, University Medical Center Groningen, Groningen, Netherlands
⁹Department of Internal Medicine, Hematology, Maastricht University Medical Center+ and Hemophilia Treatment Center Nijmegen-Eindhoven-Maastricht, Maastricht, Netherlands
¹⁰Department of Gynaecology and Obstetrics, Erasmus MC, Erasmus University Medical Center, Rotterdam, Rotterdam, Netherlands
¹¹Department of Pediatric Hematology, Emma Children's Hospital, University Medical Centers, location AMC, Amsterdam, Amsterdam, Netherlands
¹²Department of Obstetrics, Leiden University Medical Center, Leiden, Netherlands
¹³Department of Woman and Baby, University Medical Center Utrecht, Wilhelmina Children's Hospital, Utrecht, Netherlands

David Lazris, MD¹ and Craig D. Seaman²

¹Internal Medicine, University of Pittsburgh Medical Center, Pittsburgh, PA
²University of Pittsburgh and Hemophilia Center of Western Pennsylvania, Warrendale, PA

Amanda M Henderson, MD¹ and Haowei Linda Sun, MD MHSc FRCPC²

¹Department of Medicine, University of Alberta, Edmonton, AB, Canada
²Division of Hematology, Department of Medicine, University of Alberta, Edmonton, AB, Canada

Nicoletta C Machin, DO^1,2, Deborah Vehec, RN^2*, Dana E Ivanco^2*, Brandon Lawryk, BS^2*, Maria Brooks, PhD^3* and Margaret V. Ragni, MD, MPH^2,4

¹Division of Classical Hematology, Department of Medicine, University of Pittsburgh, Pittsburgh, PA
²Hemophilia Center of Western Pennsylvania, Pittsburgh, PA
³Center for Research on Health Care Data Center, University of Pittsburgh, Pittsburgh, PA
⁴Division Classical Hematology, University of Pittsburgh, Pittsburgh, PA

Gregorio Campos-Cabrera, MD¹, Carlota Campos-Mendez^2*, Esther Mendez-Garcia, MD^3*, Virginia Campos-Cabrera, QFB EBC^4*, Salvador Campos-Cabrera, MD^5* and Jose-Luis Campos-Villagomez, MD^5*

¹HEMATOLOGY AND BLOOD BANK, Laboratorios Fatima de Michoacan, Morelia, Mexico
²ESCUELA DE MEDICINA (MEDICINE STUDENT), UNIVERSIDAD VASCO DE QUIROGA, MORELIA, MH, Mexico
³RADIOLOGY, LABORATORIOS FATIMA DE MICHOACAN, MORELIA, MH, MEX
⁴PATOLOGIA CLINICA, LABORATORIOS FATIMA DE MICHOACAN, MORELIA, MH, Mexico
⁵HEMATOLOGY AND BLOOD BANK, LABORATORIOS FATIMA DE MICHOACAN, MORELIA, MH, Mexico

Shreya Agarwal, MD¹, Adebimpe Adelaja, BS^2*, Joseph R Stanek, MS^3,4*, Paula James, MD, FRCPC⁵, Veronica Heather Flood, MD^6,7 and Sarah H. O'Brien, MD, MSc^8,9

¹Benioff Children's Hospital/University of California San Francisco, San Francisco, CA
²Center for Child Health Equity and Outcomes Research, The Abigail Wexner Research Institute, Nationwide Children's Hospital, Canal Winchester, OH
³Division of Pediatric Hematology/Oncology/BMT, Nationwide Children's Hospital, Columbus, OH
⁴Biostatistics Resource at Nationwide Children's Hospital, Columbus, OH
⁵Division of Hematology, Department of Medicine, Queen's University, Kingston, ON, Canada
⁶Blood Center of Wisconsin, Milwaukee, WI
⁷Medical College of Wisconsin, Milwaukee, WI
⁸Center for Child Health Equity and Outcomes Research, Abigail Wexner Research Institute at Nationwide Children's Hospital, Columbus, OH
⁹Division of Pediatric Hematology/Oncology/BMT, Nationwide Children's Hospital and The Ohio State University, College of Medicine, Columbus, OH

Anne de Vaan, MD^1*, Jeroen Eikenboom, MD, PhD², Marieke JHA Kruip, MD, PhD^3*, Elke A Doeff^1*, Marieke C Punt, MD, PhD^1*, Michiel Coppens, MD, PhD^4*, Laurens Nieuwenhuizen, MD PhD^5*, Saskia EM Schols, MD, PhD^6*, Anja BU Mäkelburg, MD, PhD^7*, Floor CJI Moenen, MD, PhD^8*, Hans JJ Duvekot, Md, PhD^9*, Marjolein Peters, MD, PhD^10*, Annemieke JM Middeldorp, MD, PhD^11*, Kitty WM Bloemenkamp, MD, PhD^12*, Roger EG Schutgens, MD, PhD, MSc^1* and Karin PM van Galen, MD, PhD^1*

¹Center for Benign Hematology, Thrombosis and Hemostasis - Van Creveldkliniek, University Medical Center Utrecht, Utrecht University, Utrecht, Netherlands
²Department of Internal Medicine, Division of Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, Netherlands
³Department of Hematology, Erasmus MC, Erasmus University Medical Center Rotterdam, Rotterdam, NLD
⁴Amsterdam University Medical Centers, Department of Vascular Medicine, University of Amsterdam and Amsterdam Cardiovascular Sciences, Pulmonary Hypertension & Thrombosis, Amsterdam, Netherlands
⁵Department of Internal Medicine, Máxima Medisch Centrum, Eindhoven, Netherlands
⁶Department of Hematology, Radboud University Medical Center, Nijmegen, Netherlands
⁷Department of Hematology, University Medical Center Groningen, Groningen, Netherlands
⁸Department of Internal Medicine, Hematology, Maastricht University Medical Center+ and Hemophilia Treatment Center Nijmegen-Eindhoven-Maastricht, Maastricht, Netherlands
⁹Department of Gynaecology and Obstetrics, Erasmus MC, Erasmus University Medical Center, Rotterdam, Rotterdam, Netherlands
¹⁰Department of Pediatric Hematology, Emma Children's Hospital, University Medical Centers, location AMC, Amsterdam, Amsterdam, Netherlands
¹¹Department of Obstetrics, Leiden University Medical Center, Leiden, Netherlands
¹²Department of Woman and Baby, University Medical Center Utrecht, Wilhelmina Children's Hospital, Utrecht, Netherlands