The Relation of the Sex of Offspring to the Time of Coitus during the Oestrous CycleBr Med J 1927; 2 doi: https://doi.org/10.1136/bmj.2.3489.917 (Published 19 November 1927) Cite this as: Br Med J 1927;2:917
Log in using your username and password
Log in through your institution
Register for a free trial to thebmj.com to receive unlimited access to all content on thebmj.com for 14 days.
Sign up for a free trial