[1] MASSACHUSETTS GEN HOSP, DEPT INTERNAL MED, VINCENT RES LABS, BOSTON, MA 02114 USA
[2] MASSACHUSETTS GEN HOSP, DEPT GYNECOL, VINCENT RES LABS, BOSTON, MA 02114 USA
[3] NICHHD, DEV ENDOCRINOL BRANCH, BETHESDA, MD 20205 USA
[4] SALK INST BIOL STUDIES, PEPTIDE BIOL LAB, SAN DIEGO, CA 92112 USA