[1] UNIV SO CALIF,SCH MED,OBSTET & GYNECOL,LOS ANGELES,CA 90033
[2] CAVENDISH CLIN,LONDON NW8 9SQ,ENGLAND
[3] HARVARD UNIV,SCH MED,DEPT PREVENT MED & EPIDEMIOL,BOSTON,MA 02115
[4] FRAMINGHAM HEART STUDY PROGRAM,FRAMINGHAM,MA 01701
[5] KINGS COLL,SCH MED,DEPT OBSTET & GYNACOL,LONDON SE5 8RX,ENGLAND
[6] UNIV WASHINGTON,MED,SEATTLE,WA 98195
[7] UNIV WASHINGTON,NW LIPID RES CLIN,SEATTLE,WA 98195
[8] UNIV SO CALIF,SCH MED,DEPT OBSTET & GYNECOL,LOS ANGELES,CA 90033
[9] UNIV CALIF BERKELEY LAWRENCE BERKELEY LAB,DONNER LAB,BERKELEY,CA 94720
[10] NICHHD,CONTRACEPT EVALUAT BRANCH,BETHESDA,MD 20205
[11] WOMENS HOSP,DEPT OBSTET & GYNECOL,LOS ANGELES,CA 90033