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Yank V, Rennie D, Bero LA (2007). Financial ties and concordance between results: retrospective cohort study. BMJ 335:1202-5.
The editors are grateful to:
BMJ for allowing the James Lind Library to link to this and other BMJ articles of historical relevance (email to Iain Chalmers from Fiona Godlee, 05 May 2015).