| Literature DB >> 7463420 |
J Röttger, D R Hadden, E Morrison, F McKeown.
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Year: 1981 PMID: 7463420 PMCID: PMC1438318 DOI: 10.1177/014107688107400113
Source DB: PubMed Journal: J R Soc Med ISSN: 0141-0768 Impact factor: 18.000