| Literature DB >> 519378 |
W F Kelly, G F Joplin, F H Doyle, K Mashiter, L M Banks, H Gordon.
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Year: 1979 PMID: 519378 PMCID: PMC1597297 DOI: 10.1136/bmj.2.6199.1222-d
Source DB: PubMed Journal: Br Med J ISSN: 0007-1447