Sutee Yoksan. (1989) Studies on the attenuation of uncloned dengue 1-4 viruses : biological markers for virulent and avirulent of uncloned viruses serially passaged in primary kidney cells. Mahidol University,:ม.ป.ท.Sutee Yoksan. 1989. Studies on the attenuation of uncloned dengue 1-4 viruses : biological markers for virulent and avirulent of uncloned viruses serially passaged in primary kidney cells. ม.ป.ท.:Mahidol University,;Sutee Yoksan. Studies on the attenuation of uncloned dengue 1-4 viruses : biological markers for virulent and avirulent of uncloned viruses serially passaged in primary kidney cells. ม.ป.ท.:Mahidol University, 1989. Print.