Download the full article as a PDF
Chan A-W, Hròbjartsson A, Haahr M, Gøtzsche PC, Altman DG (2004). JAMA 291(20):2457-2465
The editors are grateful to:
JAMA for allowing the James Lind Library to link to this and other articles of historical relevance (email to Iain Chalmers from Annette Flanagin, 29 August 2014).