[1] UNIV TORONTO, ST MICHAELS HOSP, DEPT MED ENDOCRINOL, TORONTO M5B 1W8, ONTARIO, CANADA
[2] MAYO CLIN & MAYO FDN, DEPT PATHOL, ROCHESTER, MN 55905 USA
[3] MAYO CLIN & MAYO FDN, DEPT MED ENDOCRINOL, ROCHESTER, MN 55905 USA
[4] MAYO CLIN & MAYO FDN, DEPT SURG NEUROSURG, ROCHESTER, MN 55905 USA
[5] UNIV CALIF BERKELEY LAWRENCE BERKELEY LAB, BERKELEY, CA 94720 USA
[6] UNIV CALIF BERKELEY, DONNER LAB, BERKELEY, CA 94720 USA
[7] UNIV CALIF DAVIS, DEPT MED, DAVIS, CA 95616 USA
[8] UNIV VIRGINIA, MED CTR, DEPT MED ENDOCRINOL, CHARLOTTESVILLE, VA 22908 USA
[9] SALK INST BIOL STUDIES, PEPTIDE BIOL LAB, SAN DIEGO, CA 92138 USA