| Literature DB >> 3091167 |
J A Thornhill, R M Conroy, D G Kelly, A Walsh, J J Fennelly, J M Fitzpatrick.
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Year: 1986 PMID: 3091167 PMCID: PMC1341111 DOI: 10.1136/bmj.293.6545.480
Source DB: PubMed Journal: Br Med J (Clin Res Ed) ISSN: 0267-0623