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Citation |
Doll R. J. R. Coll. Gen. Pract. 1975; 25(154): 326-334. |
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Copyright |
(Copyright © 1975, Royal College of General Practitioners) |
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DOI |
unavailable |
PMID |
1177228 |
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PMCID |
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Abstract |
[Abstract unavailable] Language: en |