Kelly Cleland, MPA, MPH, Mitchell D. Creinin, MD, Deborah Nucatola, MD, Montsine Nshom, MPH, and James Trussell, PhD
VOL. 121, NO. 1, JANUARY 2013 OBSTETRICS & GYNECOLOGY pages 166 à 171
Kelly Cleland, MPA, MPH, Mitchell D. Creinin, MD, Deborah Nucatola, MD, Montsine Nshom, MPH, and James Trussell, PhD
VOL. 121, NO. 1, JANUARY 2013 OBSTETRICS & GYNECOLOGY pages 166 à 171