1.
Acta méd. colomb
;
26(6): 295-300, nov.-dic. 2001. tab, graf
Article
in Spanish
| LILACS
| ID: lil-358361
2.
Rev. costarric. cardiol
;
3(2): 65-68, mayo-ago. 2001.
Article
in Spanish
| LILACS
| ID: lil-580268