| Literature DB >> 3105377 |
D P Sprengers, D C Knockaert, W Van Steenbergen, F Penninckx.
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Year: 1987 PMID: 3105377 DOI: 10.7326/0003-4819-106-5-772_2
Source DB: PubMed Journal: Ann Intern Med ISSN: 0003-4819 Impact factor: 25.391