U.S. Food and Drug Administration. FDA talk paper: black box warning added concerning long-term use of Depo-Provera contraceptive injection. November 17, 2004. Accessed at www.fda.gov/bbs/topics/ANSWERS/2004/ANS01325.html, April 13, 2006.
World Health Organization. WHO statement on hormonal contraception and bone health. Accessed at www.who.int/reproductivehealth/family-planning/bone- health.html, January 11, 2006.
A prospective study of immediate initiation of depot medroxyprogesterone acetate contraceptive injection
Sneed R, Westhoff C, Morroni C, Tiezzi L. A prospective study of immediate initiation of depot medroxyprogesterone acetate contraceptive injection. Contraception. 2005;71:99-103.
Birth control within reach: A national survey on women's attitudes and interest in pharmacy access to hormonal contraception
Landau SC, Tapias MP, Taylor-McGhee B. Birth control within reach: a national survey on women's attitudes and interest in pharmacy access to hormonal contraception. Contraception. 2006;74:463-70.
Pharmacy Access Partnership. National survey on attitudes and interest for pharmacy access to hormonal contraception among women at risk for unintended pregnancy: 2004. Accessed at www.pharmacyaccess.org/Publications.htm, April 13, 2006.