1.
Rev. Inst. Nac. Enfermedades Respir
;
7(2): 141-8, abr.-jun. 1994. tab, ilus
Article
in Spanish
| LILACS
| ID: lil-143277
2.
Rev. colomb. neumol
;
4(1): 29-33, mar. 1992. ilus
Article
in Spanish
| LILACS
| ID: lil-190774