[1] Univ Edinburgh, Clin Pharmacol Unit, Queens Med Res Inst, Edinburgh EH16 4TJ, Midlothian, Scotland
[2] Univ Utah, Div Nephrol, Salt Lake City, UT USA
[3] Med Coll Georgia, Vasc Biol Ctr, Augusta, GA 30912 USA
[4] McGill Univ, Dept Med, Sir Mortimer B Davis Jewish Hosp, Montreal, PQ, Canada