1.
Bol. Hosp. Viña del Mar
;
47(1): 57-9, 1991.
Article
in Spanish
| LILACS
| ID: lil-109913
2.
Bol. Hosp. Viña del Mar
;
46(2): 63-71, 1990. tab
Article
in Spanish
| LILACS
| ID: lil-109863