| Literature DB >> 3105723 |
K Farrington, Z Varghese, M K Chan, O N Fernando, R A Baillod, P Sweny, J F Moorhead.
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Year: 1987 PMID: 3105723 PMCID: PMC1245802 DOI: 10.1136/bmj.294.6574.743
Source DB: PubMed Journal: Br Med J (Clin Res Ed) ISSN: 0267-0623