[1] HEIDELBERG REPATRIAT HOSP, DEPT MED, MELBOURNE, VIC, AUSTRALIA
[2] MERCK SHARP & DOHME LTD, RES LABS, West Point, PA 19486 USA
[3] VIRGINIA POLYTECH INST & STATE UNIV, BLACKSBURG, VA 24061 USA
[4] UNIV CONNECTICUT, DEPT MED, STORRS, CT 06269 USA
[5] UNIV NOTTINGHAM HOSP, QUEENS MED CTR, DEPT MED, NOTTINGHAM NG7 2UH, ENGLAND
[6] UNIV HONG KONG, DEPT MED, HONG KONG, HONG KONG
[7] UNIV NOTTINGHAM, DEPT THERAPEUT, NOTTINGHAM NG7 2RD, ENGLAND
[8] ASTRA HASSLE AB, MOLNDAL, SWEDEN
[9] UNIV KANSAS, MED CTR, DEPT PHARMACOL TOXICOL & THERAPEUT, KANSAS CITY, KS 66103 USA