1. Title 21 Food and Drugs, Chapter I Food and Drug Administration Department of Health and Human Services; Subchapter H Medical Devices; Part 884 Obstetrical and Gynecological Therapeutic Devices,2019
2. Internal menstrual protection; use of a safe and sanitary menstrual cup;Liswood;Obstet Gynecol,1959
3. Internal menstrual protection with the rubber menstrual cup;Karnaky;Obstet Gynecol,1962
4. An alternative to conventional sanitary protection: would women use a menstrual cup?;Stewart;J Obstet Gynaecol,2009
5. FLOW (finding lasting options for women): multicentre randomized controlled trial comparing tampons with menstrual cups;Howard;Can Fam Physician,2011