| Literature DB >> 4729739 |
A P Chavarría, J C Swartzwelder, V M Villarejos, R Zeledón.
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Year: 1973 PMID: 4729739 DOI: 10.4269/ajtmh.1973.22.592
Source DB: PubMed Journal: Am J Trop Med Hyg ISSN: 0002-9637 Impact factor: 2.345