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Citation |
Roberts I, Hosford T, Edwards P. Br. Med. J. BMJ 2001; 323(7327): 1485. |
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Affiliation |
Public Health Intervention Research Unit, London School of Hygiene and Tropical Medicine, London WC1B 3DP. Ian.Roberts@lshtm.ac.uk |
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Copyright |
(Copyright © 2001, BMJ Publishing Group) |
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DOI |
unavailable |
PMID |
11751365 |
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PMCID |
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Abstract |
unavailable. |