| Affiliation: | (1) Department of Obstetrics and Gynecology, Washington Hospital Center, Washington, DC, USA;(2) Department of Obstetrics and Gynecology, University of Iowa, Iowa, IA, USA;(3) Department of Biostatistics, University of Michigan, Ann Arbor, MI, USA;(4) Department of Geriatric Medicine, University of Alabama at Birmingham, Birmingham, AL, USA;(5) Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA;(6) Department of Obstetrics and Gynecology, Loyola University Chicago, Chicago, IL, USA;(7) Department of Obstetrics and Gynecology/Urogynecology, Washington Hospital Center, 106 Irving Street, NW suite 2100N, Washington, DC, 20010, USA |
