From the French Reference Center for Aplastic Anemia and Paroxysmal Nocturnal Hemoglobinuria, Saint-Louis Hospital and Université de Paris (R.P.L., F.S.F., C.F., G.S.), and the Adolescent and Young Adult Hematology Unit, Saint-Louis Hospital (F.R.), Paris, the Hematology Department, Centre Hospitalier Universitaire de Toulouse, Institut Universitaire du Cancer de Toulouse Oncopole, Toulouse (C.R., S.T.), Centre Hospitalier Universitaire Lyon Sud, Lyon (F.B., A.P.), Centre Hospitalier Universitaire... (At 2022-01-06)