| Literature DB >> 6901582 |
C Belanger, F E Speizer, C H Hennekens, B Rosner, W Willett, C Bain.
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Year: 1980 PMID: 6901582 DOI: 10.1097/00000446-198007000-00024
Source DB: PubMed Journal: Am J Nurs ISSN: 0002-936X Impact factor: 2.220