title: [Epidemiologic studies on the incidence of Pneumocystis carinii infection in children with chronic respiratory tract diseases].
mesh_terms: D000293:Adolescent; D000367:Age Factors; D001249:Asthma / Q000150:complications; D001991:Bronchitis / Q000150:complications; D002648:Child; D002675:Child, Preschool; D002908:Chronic Disease; D005260:Female; D006801:Humans; D008297:Male; D011020:Pneumonia, Pneumocystis / Q000453:epidemiology*; D011044:Poland; D012737:Sex Factors
vernacular_title: Badania epidemiologiczne nad wystepowaniem zarazenia Pneumocystis carinii u dzieci z przewlekłymi chorobami układu oddechowego.