| Literature DB >> 2648930 |
R DeVore1, J Whitlock, J D Hainsworth, D H Johnson.
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Year: 1989 PMID: 2648930 DOI: 10.7326/0003-4819-110-9-740
Source DB: PubMed Journal: Ann Intern Med ISSN: 0003-4819 Impact factor: 25.391