1. 1Department of Biostatistics and Epidemiology, Hudson College of Public Health, The University of Oklahoma Health Sciences Center, Oklahoma City, OK
2. 2Department of Health and Exercise Science, The University of Oklahoma, Norman, OK
3. 3United States Thrombotic Microangiopathy Consortium, Columbus, OH
4. 4Division of Hematology, Department of Internal Medicine, The Ohio State University, Columbus, OH
5. 5American Institutes for Research, Chapel Hill, NC
6. 6Department of Medicine, Hematology/Oncology Section, The University of Oklahoma Health Sciences Center, Oklahoma City, OK
7. 7Department of Pediatrics, The University of Oklahoma Health Sciences Center, Oklahoma City, OK
8. 8National Heart, Lung and Blood Institute, National Institutes of Health, Bethesda, MD