[Studies on purified tuberculin. IX. A comparison between the international standard purified tuberculin (PT) sent from State Serum Institute, Denmark, and the PPD-s manufactured by the National Institute of Health, Tokyo, in the pupils of primary and middle schools].
D003718:Denmark; D006801:Humans; D011680:Pupil; D012574:Schools; D014041:Tokyo; D014373:Tuberculin; D014374:Tuberculin Test / Q000706:statistics & numerical data*
D014373:Tuberculin
TUBERCULIN REACTION/statistics