| Literature DB >> 8098463 |
P Guevara, J L Ramírez, E Rojas, J V Scorza, N González, N Añez.
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Year: 1993 PMID: 8098463 DOI: 10.1016/0140-6736(93)90845-8
Source DB: PubMed Journal: Lancet ISSN: 0140-6736 Impact factor: 79.321