What are little boys made of? The never-ending search for sex selection techniques.
Schaffir
J
J
Department of Obstetrics and Gynecology, Mt. Sinai Hospital, New York, New York 10029.
D005260:Female; D049670:History, 17th Century; D049672:History, 19th Century; D049673:History, 20th Century; D049690:History, Ancient; D049691:History, Medieval; D006801:Humans; D008297:Male; D012733:Sex Differentiation; D012743:Sex Preselection / Q000379:methods*