Authors: TSEGA E HORTON J NORDENFELT E HANSSON BJ TAFESSE B WOLDEHAWARIAT G LINDBERG J

Citation: E. Tsega et al., ANTIBODY-LEVELS IN ETHIOPIAN CHILDREN 5 YEARS AFTER VACCINATION WITH 2 DIFFERENT DOSES OF HEPATITIS-B VACCINE - IS THERE A NEED FOR BOOSTERVACCINE, Canadian journal of gastroenterology, 12(1), 1998, pp. 57-60