STUDIES ON JAPANESE B ENCEPHALITIS VIRUS VACCINES FROM TISSUE CULTURE. IV. PREPARATION AND CHARACTERIZATION OF POOL OF ATTENUATED OCT-541 LINE FOR HUMAN VACCINE TRIAL.

STUDIES ON JAPANESE B ENCEPHALITIS VIRUS VACCINES FROM TISSUE CULTURE. IV. PREPARATION AND CHARACTERIZATION OF POOL OF ATTENUATED OCT-541 LINE FOR HUMAN VACCINE TRIAL.