[The prevalence of chronic bronchitis (based on data from epidemiological research)].
Guseĭnov
Kh Iu
KhIu
D001991:Bronchitis / Q000453:epidemiology* / Q000209:etiology; D002908:Chronic Disease; D014943:Global Health; D006801:Humans; D009784:Occupational Diseases / Q000453:epidemiology / Q000209:etiology; D015995:Prevalence; D012424:Rural Population / Q000706:statistics & numerical data; D014505:Urban Population / Q000706:statistics & numerical data