| Literature DB >> 3143445 |
J Main1, H McKenzie, G R Yeaman, M A Kerr, D Robson, C R Pennington, D Parratt.
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Year: 1988 PMID: 3143445 PMCID: PMC1834894 DOI: 10.1136/bmj.297.6656.1105
Source DB: PubMed Journal: BMJ ISSN: 0959-8138