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Lung cancer, tobacco, and environmental factors in the African population of the Northern Province, South Africa
DESIGN—Case-control study among incident African patients with cancer. Questionnaire assessment of exposure to tobacco, occupation, and place of birth. SETTING—Northern Province, South Africa. SUBJECTS—Between 1993 and 1995, 288 men and 60 women with lung cancer and 183 male and 197 female controls...
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Main Authors: | , , , , |
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Formato: | Artigo |
Idioma: | Inglês |
Publicado em: |
BMJ Group
1999
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Acesso em linha: | https://ncbi.nlm.nih.gov/pmc/articles/PMC1759754/ https://ncbi.nlm.nih.gov/pubmed/10629246 |
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