| Literature DB >> 811309 |
C A Wardrop, R V Heatley, R H Williams, M H Lewis, G B Tennant, L E Hughes.
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Year: 1975 PMID: 811309 PMCID: PMC1675156 DOI: 10.1136/bmj.4.5992.344-a
Source DB: PubMed Journal: Br Med J ISSN: 0007-1447