Olubusola Oluwole, MD, MS¹, Ann M Brunson, MS^2*, Oyebimpe O. Adesina, MD, MS³, Shaina M Willen, MD⁴, Theresa H.M. Keegan, PhD⁵, Kleber Yotsumoto Fertrin, MD, PhD⁶ and Ted Wun, MD⁷

¹University of Washington, Seattle, WA
²Center for Oncology Hematology Outcomes Research and Training (COHORT), Division of Hematology and Oncology, University of California Davis Comprehensive Cancer Center, Sacramento, CA
³Division of Hematology Oncology, UC Davis, Mountain View, CA
⁴Department of Pediatrics, Division of Pulmonary Medicine, University of California - Davis, Sacramento, CA
⁵University of California – Davis, Sacramento, CA
⁶Division of Hematology, Department of Medicine, University of Washington, Seattle, WA
⁷Center for Oncology Hematology Outcomes Research and Training (COHORT), University of California Davis School of Medicine, Sacramento, CA

Ibrahim Musa Idris, MBBS, MPH, FMCPath¹, Dalha H Gwarzo, MBBS, FMCPath², Shamsu Iguda, MBBS^3*, Faruk Aminu, MBBS^3*, Mustapha Shuaibu Hikima, MBBS, FMCRad^4*, Mohammed Kabir Saleh, MBBS, FMCRad^5*, Mohammad Abba Suwaid, MBBS, FMCRad^6*, Aliyu Ibrahim, MBBS, FWACP^7*, Hauwa Ibrahim, MBBS, FMCPath^8*, Shehu Kana, MBBS, FWACP^9*, Rabia Abubakar Haruna, RN^3*, Jamil Aliyu Galadanci, MSc^10*, Nafiu Hussain, PhD^11*, Mark Rodeghier, PhD^12*, Hyacinth I Hyacinth, MD, PhD, MPH¹³, Allison A. King, MD, PhD, MPH¹⁴ and Michael R. DeBaun, MD, MPH¹⁵

¹Hematology, Aminu Kano Teaching Hospital/Bayero University Kano, Kano, Nigeria
²Aminu Kano Teaching Hospital/Bayero University Kano, Kano, NGA
³Aminu Kano Teaching Hospital, Kano, Nigeria
⁴Radiology, Muhammad Abdullahi Wase Teaching Hospital, Kano, Nigeria
⁵Department of Radiology, Aminu Kano Teaching Hospital/Bayero University Kano, Kano, Nigeria
⁶Radiology, Aminu Kano Teaching Hospital/Bayero University Kano, Kano, Nigeria
⁷Medicine, Aminu Kano Teaching Hospital/ Bayero University Kano,, Kano, Nigeria
⁸Hematology, Murtala Mohammed Specialist Hospital,, Kano, Nigeria
⁹Medicine, Aminu Kano Teaching Hospital, Kano, Nigeria
¹⁰Department of Computer Science, Bayero University Kano, Kano, Nigeria
¹¹Mathematical Science, Bayero University Kano, Kano, Nigeria
¹²Statistical Consultant, Rodeghier Consultants, Chicago, IL
¹³University of Cincinnati College of Medicine, Cincinnati, OH
¹⁴Pediatric Hematology/Oncology, Washington University School of Medicine, Clayton, MO
¹⁵Department of Pediatrics, Division of Hematology & Oncology, Vanderbilt University School of Medicine, Nashville, TN

Françoise Bernaudin, MD¹, Cécile Arnaud, MD^1*, Annie Kamdem, MD^1*, Isabelle Hau, MD^2*, Fouad Madhi, MD^2*, Ralph Epaud, MD, PHD^2*, Camille Jung, MD^3* and Suzanne Verlhac, MD^4*

¹Referral Center for Sickle Cell Disease, Pediatrics, CHIC Hospital, University Paris XII, Créteil, France
²Pediatrics, CHIC Hospital, University Paris XII, Créteil, France
³Clinical Research Center, CHIC Hospital, University Paris XII, Créteil, France
⁴Medical Imagery Department, Reference Center for Sickle Cell Disease, CHIC and Debré Hospital, Créteil, France

Liza Afzali-Hashemi^1*, Koen P.A. Baas, MSc^1*, Elisabeth Dovern, MD^2*, Anouk Schrantee, PhD^1*, Aart J. Nederveen, PhD^1*, Erfan Nur, MD, PhD² and Bart J Biemond²

¹Department of Radiology and Nuclear Medicine, Amsterdam UMC location University of Amsterdam, Amsterdam, Netherlands
²Department of Hematology, Amsterdam UMC location University of Amsterdam, Amsterdam, Netherlands

Alan Anderson^1*, Fuad El Rassi, MD², Michael R. DeBaun, MD, MPH^3*, Modupe Idowu, MD⁴, Julie Kanter, MD⁵, Soheir Adam, MD, FRCPath⁶, Susanna Curtis, MD, PhD⁷, Darla Liles, MD⁸, Biree Andemariam, MD⁹, Morgan L. McLemore², Robert Sheppard Nickel, MD, MSc¹⁰, Poornima Ramadas, MD¹¹, Jincy Paulose, MD^12*, Dramane I Laine^12*, Mahmudul Khan^12*, Deepika S. Darbari, MD¹⁰ and Arthur L. Burnett, MD, MBA^13*

¹Prisma Health-Upstate Comprehensive SCD Program; University of South Carolina School of Medicine, Greenville, SC
²Department of Hematology and Medical Oncology, Emory University School of Medicine, Atlanta, GA
³Vanderbilt-Meharry Center for Excellence in Sickle Cell Disease, Vanderbilt University School of Medicine, Nashville, TN
⁴UT Physicians Comprehensive Sickle Cell Center, University of Texas, Houston, TX
⁵UAB Sickle Cell Clinic, University of Alabama, Birmingham, AL
⁶Duke Adult Comprehensive Sickle Cell Center, Duke University, Durham, NC
⁷Montefiore Medical Center, Albert Einstein College of Medicine, New York, NY
⁸Brody School of Medicine, East Carolina University, Greenville, NC
⁹New England Sickle Cell Institute at the University of Connecticut, Farmington, CT
¹⁰Comprehensive Sickle Cell Disease Program, Children's National Hospital, Washington, DC
¹¹Feist-Weiller Cancer Center, LSU Health Shreveport, Shreveport, LA
¹²Novartis Pharmaceuticals Corporation, East Hanover, NJ
¹³Brady Urological Institute, Johns Hopkins Medical Institutions, Baltimore, MD

Amina Nardo-Marino^1,2,3,4*, Andreas Glenthøj, MD, PhD¹, John N. Brewin^3,4*, Jesper Petersen^1*, Thomas H. Braunstein^5*, Jørgen A. L. Kurtzhals^2,6*, Thomas N. Williams^7,8* and David C. Rees^3,4*

¹Centre for Haemoglobinopathies, Department of Haematology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
²Centre for Medical Parasitology, Department of Immunology and Microbiology, University of Copenhagen, Copenhagen, Denmark
³Department of Haematological Medicine, King's College Hospital, London, United Kingdom
⁴Red Cell Haematology, Comprehensive Cancer Centre, School of Cancer and Pharmaceutical Sciences, King's College London, London, United Kingdom
⁵Core Facility for Integrated Microscopy, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
⁶Department of Clinical Microbiology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
⁷KEMRI-Wellcome Trust Research Programme, Kilifi, Kenya
⁸Institute of Global Health Innovation, Department of Surgery and Cancer, Imperial College London, London, United Kingdom