1. Departments of Medicine (S.J.S., I.B., J.P.B.), New York, New York 10032;
2. Scantibodies Laboratory (P.G., T.L.C.), Santee, California 92071
3. Surgery (P.L.), College of Physicians and Surgeons, Columbia University, New York, New York 10032;
4. Pharmacology (J.P.B.), New York, New York 10032;