1. Professor of Internal Medicine, and Director, Department of Post-Graduate Medicine; University of Michigan Medical School; Ann Arbor Michigan
2. Director, Institute of Allergy, Roosevelt Hospital; New York N. Y.
3. Assistant Clinical Professor of Medicine, and Director, Allergy Clinic, Washington University School of Medicine; St. Louis Missouri
4. Associate Professor of Medicine, McGill University
5. Associate Physician, Royal Victoria Hospital; Montreal Canada
6. Associate Clinical Professor of Medicine, Columbia University, College of Physicians and Surgeons; New York N. Y.