Filtering by: Subject Armstrong, Brenda Remove constraint Subject: Armstrong, Brenda Subject Duke University. Department of Obstetrics and Gynecology Remove constraint Subject: Duke University. Department of Obstetrics and Gynecology Subject Duke University. Medical Center Remove constraint Subject: Duke University. Medical Center Subject Duke University. Medical Center. Department of Medicine Remove constraint Subject: Duke University. Medical Center. Department of Medicine Year 2008 Remove constraint Year: 2008