1. From the Department of Hematology; Biostatistics Unit, Centre René Huguenin, Saint-Cloud; Departments of Neurology and Hematology, Hôpital Pitié-Salpétrière; Department of Hematology, Hôpital Lariboisière, Paris; Departments of Neurology and Hematology, Centre Hospitalier Universitaire (CHU), Nancy; Department of Hematology, CHU Dijon; Department of Hematology, CH Lens; Department of Hematology, Hôpital Militaire, Percy; Department of Hematology, Hôpital de Versailles, Versailles; Department of...