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Rev. argent. cir
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76(6): 229-31, jun. 1999.
Article
in Spanish
| LILACS
| ID: lil-241591
2.
Med. interna (Caracas)
;
12(4): 153-7, 1996. tab
Article
in Spanish
| LILACS
| ID: lil-230657
3.
Pediatría (Santiago de Chile)
;
37(1/2): 49-59, ene.-jun. 1994.
Article
in Spanish
| LILACS
| ID: lil-151209