1.
Rev. Soc. Boliv. Pediatr
;
40(1): 12-23, 2001. tab
Article
in Spanish
| LILACS
| ID: lil-329791
2.
Londrina; Gnatus; 1997. 88 p. ilus. (BR).
Monography
in Portuguese
| LILACS, BBO
| ID: lil-298383