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Gac. méd. boliv
;
28(1): 7-7, 2005. ilus, tab, graf
Article
in Spanish
| LILACS
| ID: lil-411912
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Med. infant
;
10(1 y 2): 65-79, mar.-jun. 2003. ilus
Article
in Spanish
| LILACS
| ID: lil-510606