1. J.K. Brown and M.H. Malone, J. Amer. Pharm. Ass., NS13 (1973) in press
2. V. Pawlak (Do It Now Foundation, Phoenix, Ariz. 85010, U.S.A.), personal communication, 1972
3. G.D. Lundberg (LAC-USC Medical Center, 1200 N. State Street, Los Angeles, Calif. 90033, U.S.A.), personal communication, 1973