title: Clinical, epidemiological and virological studies of aseptic meningitis in Aomori district during seven-year period, 1961-1967, with special reference to ECHO virus infections.
mesh_terms: D002648:Child; D002675:Child, Preschool; D004457:Echovirus Infections / Q000453:epidemiology / Q000276:immunology; D006801:Humans; D007223:Infant; D007564:Japan; D008587:Meningitis, Viral / Q000453:epidemiology / Q000276:immunology / Q000382:microbiology; D009500:Neutralization Tests