1. Department of Medicine, VA West Side Hospital and the Department of Medicine and Pediatrics, University of Illinois College of Medicine.
2. VA West Side Hospital, Chicago, Illinois. On leave from Kupat-Holim, (General Sick Fund), Israel.
3. Formerly Instructor in Pediatrics, University of Illinois College of Medicine. Present Address: Staff member St. Jude Childrens Research Hospital and Assistant Professor of Pediatrics, University of Tennessee, Memphis.
4. Department of Medicine, VA West Side Hospital, Chicago, Illinois and Assistant Professor Department of Medicine, University of Illinois College of Medicine.