title: The incidence of chronic nonspecific diseases of the lungs according to the case material of the Chair of Pathological Anatomy--Higher Medical Institute, Sofia.
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D001344:Autopsy; D002031:Bulgaria; D002648:Child; D002675:Child, Preschool; D002908:Chronic Disease; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008171:Lung Diseases / Q000453:epidemiology* / Q000473:pathology; D008173:Lung Diseases, Obstructive / Q000453:epidemiology; D008297:Male; D008875:Middle Aged; D012737:Sex Factors