Besides being ineffective, methods of
withdrawl have traditionally been opposed by the Church as over-indulgence of the flesh.
* [http://www.epm.org/articles/pilldebate2.html The Growing Debate about the Abortifacient Effect of the Birth Control Pill and the Principle of the Double Effect] - by Dr. Walt L. Larimore
* [http://archfami.ama-assn.org/cgi/content/full/9/2/126?maxtoshow=&HITS=10&hits=10&RESULTFORMAT=&fulltext=postfertilization&searchid=1052273133039_87&stored_search=&FIRSTINDEX=0&journalcode=archfami Postfertilization Effects of Oral Contraceptives and Their Relationship to Informed Consent] - Article by Dr. Walter L. Larimore
* PBS aired a documentary a little while ago on
“The Pill. �? Their [http://www.pbs.org/wgbh/amex/pill extensive website] contains video interviews, social history and documentary, a contraception timeline, a flash presentation of how the Pill works, internet links, and many other resources. A transcript of the television show is also available online.
* [http://www.kaisernetwork.org/daily_reports/rep_index.cfm?DR_ID=15052 Government Lists All Estrogens Used in Oral Contraceptives, Hormone Replacement Therapy as 'Known Human Carcinogens']
* [http://www.pilltruth.com/ Pilltruth.com] - More information about hormonal contraceptives