1. Gregoire AT, Mayer RC. The impregnators. Fertil Steril. 1964;16:130–4.
2. Gosden R. Cryopreservation: a cold look at technology for fertility preservation. Fertil Steril. 2011;96(2):264–8.
3. Lerner KL, Lerner BW. Medicine, health, and bioethics: essential primary sources. Detroit: Thomson/Gale; 2006.
4. CBS News. Sperm: America’s most renewable resource? 2012 April 5. Available from:
http://www.cbsnews.com/8301-505269_162-57409735/sperm-americas-most-renewable-resource/
5. 21 C.F.R. § 1271.1.