1.
Rev. méd. IMSS
;
32(1): 119-24, ene.-feb. 1994. tab
Article
in Spanish
| LILACS
| ID: lil-176864
2.
Rev. méd. IMSS
;
32(1): 125-9, ene.-feb. 1994. tab
Article
in Spanish
| LILACS
| ID: lil-176865