1.
Rev. Fed. Odontol. Colomb
; 47(181): 50-2, sept.-dic. 1993.
Article
in Spanish
| LILACS
| ID: lil-139608
2.
Rev. Fed. Odontol. Colomb
; 33(150): 55-67, jul.-dic. 1984.
Article
in Spanish
| LILACS
| ID: lil-50765