1.
Pediatría (Santiago de Chile)
;
37(3/4): 117-8, jul.-dic. 1994.
Article
in Spanish
| LILACS
| ID: lil-151219
2.
Pediatría (Santiago de Chile)
;
36(1): 54-60, ene.-mar. 1993. tab, ilus
Article
in Spanish
| LILACS
| ID: lil-131060