- Birth Control Pill: The Downside of John Rock's Invention
 - Article about the research focusing on the 28-day cycle of the Pill. From the Kaiser Family Foundation. - John Rock's Error
- Article by Malcom Gladwell discussing Rock's beliefs and the 28-day cycle of the Pill, Beverly Strassmann's findings about menstruation, and Pike's breast cancer research and GnRHA.
- NoPeriod.com
- Explores the idea of menstrual suppression with birth control pills.
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