title: Studies on the etiology of viral hepatitis (VH). I. Isolation attempts of the etiologic agent by various methods.
mesh_terms: D003168:Complement Fixation Tests; D046508:Culture Techniques; D006506:Hepatitis A / Q000382:microbiology*; D006507:Hepatovirus / Q000302:isolation & purification*; D006801:Humans; D009500:Neutralization Tests