1.
Rev. Soc. Cir. Plata
;
59(2): 18-21, 1998.
Article
in Spanish
| LILACS
| ID: lil-311440
2.
Rev. Soc. Cir. Plata
;
59(2): 60-62, 1998.
Article
in Spanish
| LILACS
| ID: lil-311447