Parker William H, Feskanich Diane, Broder Michael S, Chang Eunice, Shoupe Donna, Farquhar Cindy M, Berek Jonathan S, Manson JoAnn E
UCLA School of Medicine Santa Monica, California Brigham and Women's Hospital and Harvard Medical School Boston, Massachusetts Partnership for Health Analytic Research, LLC Beverly Hills, California Keck School of Medicine at the University of Southern California Los Angeles, California MPH University of Auckland Auckland, New Zealand Stanford University School of Medicine Stanford, California Brigham and Women's Hospital and Harvard Medical School Boston, Massachusetts.
Obstet Gynecol. 2013 Aug;122(2 Pt 1):396. doi: 10.1097/AOG.0b013e31829d438c.