A case-control study of diet and lung ca
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R. Sankaranarayanan; Cherian Varghese; Stephen W. Duffy; G. Padmakumary; Nichola
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Article
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1994
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John Wiley and Sons
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French
⚖ 720 KB
A total of 281 male lung-cancer patients were identified from the hospital cancer registry in the Regional Cancer Centre in Trivandrum. The controls were selected from the visitors and patients' bystanders in the hospital. The recruitment of cases and controls started in 1990, and the present study