[POPULATION AND GROUP TUBERCULIN STUDIES].
D006801:Humans; D009426:Netherlands; D012106:Research; D013223:Statistics as Topic; D014373:Tuberculin; D014374:Tuberculin Test
D014373:Tuberculin
NETHERLANDS; RESEARCH; STATISTICS; TUBERCULIN TEST
TUBERCULINE-BEVOLKINGS- EN -GROEPS-ONDERZOEK.