[1] Univ Minnesota, Dept Med, Masonic Canc Ctr, Box 736 UMHC, Minneapolis, MN 55455 USA
[2] Univ Minnesota, Dept Pharmacol, Masonic Canc Ctr, 3-249 Millard Hall, Minneapolis, MN 55455 USA
[3] Univ Rochester, Dept Med, Div Endocrinol Diabet & Metab, Sch Med & Dent, Rochester, NY 14642 USA