| Literature DB >> 3921189 |
D P Maudgal, J Bradshaw, M H Wansbrough-Jones, H P Lambert.
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Year: 1985 PMID： 3921189 PMCID： PMC1415874 DOI： 10.1136/bmj.290.6477.1287-b
Source DB: PubMed Journal: Br Med J (Clin Res Ed) ISSN： 0267-0623