1.
Rev. méd. Chile
;
122(2): 186-92, feb. 1994. tab
Article
in Spanish
| LILACS
| ID: lil-131043
2.
Rev. méd. Chile
;
119(4): 472-80, abr. 1991. tab, ilus
Article
in Spanish
| LILACS
| ID: lil-104602