| Literature DB >> 4740337 |
B Walton, D C Dumonde, C Williams, D Jones, J M Strunin, J M Layton, L Strunin, R Simpson.
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Year: 1973 PMID: 4740337 DOI: 10.1001/jama.225.5.494
Source DB: PubMed Journal: JAMA ISSN: 0098-7484 Impact factor: 56.272