[1] UNIV S CAROLINA, DEPT PHARMACOL, COLUMBIA, SC 29208 USA
[2] UNIV S CAROLINA, DEPT MED, COLUMBIA, SC 29208 USA
[3] UNIV CAMBRIDGE, DEPT HIGH TEMP, CAMBRIDGE, ENGLAND
[4] UNIV CAMBRIDGE, DEPT MED, CAMBRIDGE, ENGLAND
[5] PARKE DAVIS RES UNIT, CAMBRIDGE CB2 2QB, ENGLAND