Spring Books: Down's but not outBr Med J (Clin Res Ed) 1987; 294 doi: https://doi.org/10.1136/bmj.294.6578.1016 (Published 18 April 1987) Cite this as: Br Med J (Clin Res Ed) 1987;294:1016
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