Lee J A, Afable-Munsuz Aimee, Van Bebber Stephanie L, Phillips Kathryn A
Health Care Systems Department, the Wharton School, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA.
Womens Health Issues. 2008 Sep-Oct;18(5):347-50. doi: 10.1016/j.whi.2008.03.003. Epub 2008 May 12.