1. Faculty of Pharmacy (H.O., N.McN.), University of Montréal, Montréal, Canada
2. Department of Pharmacology (E.E.), University of Sherbrooke, Sherbrooke, Canada
3. Ste-Justine Hospital (R.C.), University of Montréal, Montréal, Canada
4. Europeptides (R.D.), Argenteuil, France
5. Department of Pharmacology (V.L.), University of Milan, Milan, Italy
6. Department of Internal Medecine (E.G.), University of Turin, Turin, Italy
7. Department of Anatomy (G.M.), University of Turin, Turin, Italy
8. Pharmacia & Upjohn (M.B., M.N.), Stockholm, Sweden