| Literature DB >> 687943 |
M T Reynolds, C T Keane, G H Tomkin, J C Roberts, T J Lenehan, N S Mair.
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Year: 1978 PMID: 687943 PMCID: PMC1609092 DOI: 10.1136/bmj.2.6134.400-a
Source DB: PubMed Journal: Br Med J ISSN: 0007-1447