Open AccessAny casualties in the clash of randomised and observational evidence?
Author(s) -
John P. A. Ioannidis,
AnnaBettina Haidich,
Joseph Lau
Publication year - 2001
Publication title -
bmj. british medical journal
Language(s) - English
Resource type - Journals
ISSN - 0959-8138
DOI - 10.1136/bmj.322.7291.879
Subject(s) - observational study , medicine , psychology