This Week In The Bmj
Twins challenge the fetal origins hypothesisBMJ 1999; 318 doi: http://dx.doi.org/10.1136/bmj.318.7188.0b (Published 03 April 1999) Cite this as: BMJ 1999;318:b
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