Update to CDC's U.S. Medical Eligibility Criteria for Contraceptive Use. 2010: Revised Recommendations for the Use of Contraceptive Methods During the Postpartum Period. MMWR. July 8, 2011/60(26);878-883 Jul 1, 2011 (www.cdc.gov) is your online source for credible health information and is the official Web site of the Centers for Disease Control and Prevention (CDC). View Article