1.
Acta gastroenterol. latinoam
;
12(2): 117-34, 1982.
Article
in Spanish
| LILACS
| ID: lil-8539
Subject(s)
Adult , Humans , Male , Female , Blood Donors , Carrier State , Hepatitis B Surface Antigens
2.
Acta gastroenterol. latinoam
;
12(4): 333-49, 1982.
Article
in Spanish
| LILACS
| ID: lil-10385