1. From the Department of Medicine, Institut Gustave Roussy, Villejuif Cedex, France; Hopital Saint-Louis, Paris, France; Centre Hospitalier Universitaire (CHU) de Dijon, Dijon, France; CHU Henri Mondor, Creteil, France; Universite Catholique de Louvain, Yvoir, Belgium; Hospices Civils de Lyon, Pierre-Benite, France; Centre Becquerel, Rouen, France; CHU de Limoges, Limoges, France; CHU de Besancon, Besancon, France; CHU de Caen, Caen, France; and Centre Hospitalier de Chambery, Chambery, France.