1. Centre de Référence des Microangiopathies Thrombotiques; Paris France
2. Service d'Hématologie; Hôpital Saint-Antoine; AP-HP; Paris France
3. Sorbonne Universités; Paris France
4. Departments of Medicine and Pathology & Laboratory Medicine; Perelman School of Medicine, University of Pennsylvania; Philadelphia Pennsylvania
5. Departments of Epidemiology & Biostatistics, Medicine; University of Oklahoma Health Sciences Center; Oklahoma City Oklahoma