1. Departments of Medicine, Physiology and Surgery, Columbia University, College of Physicians and Surgeons New York, New York
2. Laboratoire de Recherche en Biologie Vasculaire et Cellulaire, Unite d'Immunohematologie, Hopital Lariboisiere, Universie Paris 7 Faculte de Medecine, Paris, France
3. First Department of Medicine, Osaka University School of Medicine Osaka, Japan