Vnitr Lek 1974, 20(12):1173-1179
[Incidence of chronic bronchitis in 16-and 18-year-old boys in Prague 7].
Keywords: Adolescent; Age Factors; Bronchitis, epidemiology, ; Chronic Disease; Czechoslovakia; Humans; Male; Smoking, complications,
Published: December 1, 1974 Show citation