1.
Rev. Asoc. Colomb. Alerg. Inmunol
;
11(1): 16-16, mar. 2002.
Article
in Spanish
| LILACS
| ID: lil-346673
2.
Mem. Inst. Oswaldo Cruz
;
93(6): 739-40, Nov.-Dec. 1998. ilus, tab, graf
Article
in English
| LILACS
| ID: lil-223875