COXSACKIE B1 VIRUS ASSOCIATED WITH ATYPICAL PNEUMONIA FOUND IN A MASS CHEST X-RAY SURVEY AMONG SCHOOL CHILDREN IN SENDAI IN 1960.

COXSACKIE B1 VIRUS ASSOCIATED WITH ATYPICAL PNEUMONIA FOUND IN A MASS CHEST X-RAY SURVEY AMONG SCHOOL CHILDREN IN SENDAI IN 1960.