| Literature DB >> 4904675 |
E Rivera, N Maldonado, E Vélez-García, A J Grillo, G Malaret.
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Year: 1970 PMID: 4904675 DOI: 10.7326/0003-4819-72-2-199
Source DB: PubMed Journal: Ann Intern Med ISSN: 0003-4819 Impact factor: 25.391