[1] MCGILL UNIV,ROYAL VICTORIA HOSP,ENDOCRINE LAB,687 PINE AVE W,MONTREAL H3A 1A1,QUEBEC,CANADA
[2] MCGILL UNIV,DEPT MED,MONTREAL H3A 1A1,QUEBEC,CANADA
[3] MCGILL UNIV,DEPT OBSTET & GYNECOL,MONTREAL H3A 1A1,QUEBEC,CANADA
[4] SALK INST BIOL STUDIES,NEUROENDOCRINOL LAB,SAN DIEGO,CA 92138