[State of tuberculosis in Belgium in 1967. Introduction. The concept of reversal and the practical problems raised by it].
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D001530:Belgium; D002648:Child; D002675:Child, Preschool; D006801:Humans; D014374:Tuberculin Test; D014376:Tuberculosis / Q000517:prevention & control*
Situation de la tuberculose en Belgique en 1967. Introduction. La notion de virage et les problèmes pratiques qu'elle pose.