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Lawlor, DA; Davey Smith, G; Bruckdorfer, KR; Kundu, D; Ebrahim, S; (2004) Observational versus randomised trial evidence. Lancet, 364 (9436). p. 755. ISSN 0140-6736 DOI: https://doi.org/10.1016/S0140-6736(04)16926-2 Full text not available from this repository.

Lawlor, DA; Davey Smith, G; Kundu, D; Bruckdorfer, KR; Ebrahim, S; (2004) Those confounded vitamins: what can we learn from the differences between observational versus randomised trial evidence? Lancet, 363 (9422). pp. 1724-7. ISSN 0140-6736 DOI: https://doi.org/10.1016/S0140-6736(04)16260-0 Full text not available from this repository.

This list was generated on Wed Aug 7 14:29:01 2019 BST.