| Literature DB >> 1571684 |
M B Prentice1, A J Flower, G M Morgan, K G Nicholson, B Rana, R K Firmin, C J Mitchell.
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Year: 1992 PMID: 1571684 PMCID: PMC1881621 DOI: 10.1136/bmj.304.6829.761
Source DB: PubMed Journal: BMJ ISSN: 0959-8138