KELNOR (ethynodiol diacetate and ethinyl estradiol). Accessed December 27, 2015 from: http://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=96a73786-22b1-457e-be73-80b699996d40
Ethinyl Estradiol/Ethynodiol Diacetate. DRUGDEX System. 2015 Truven Health Analytics, Inc. Accessed December 27, 2015 from http://thomsonhc.com.