Confounding and Simpson's paradox

BMJ 1994; 309 doi: http://dx.doi.org/10.1136/bmj.309.6967.1480 (Published 3 December 1994)
Cite this as: BMJ 1994;309:1480

See more

Editorial: Chronic hypertension during pregnancy

News: In brief

Feature: Diabetes Team of the Year: adaptable and supportive

Letter: Authors’ reply to Hodson and colleagues

This article has been cited by other articles:

THIS WEEK'S POLL