| Literature DB >> 3142542 |
A R Morton1, J A Cantrill, G V Pillai, A McMahon, D C Anderson, A Howell.
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Year: 1988 PMID: 3142542 PMCID: PMC1834406 DOI: 10.1136/bmj.297.6651.772
Source DB: PubMed Journal: BMJ ISSN: 0959-8138