Some methodological problems in assessment of chronic respiratory diseases prevalence.
D002648:Child; D005260:Female; D005541:Forced Expiratory Volume; D006801:Humans; D008297:Male; D008403:Mass Screening / Q000379:methods*; D008487:Medical History Taking; D010366:Peak Expiratory Flow Rate; D011044:Poland; D012129:Respiratory Function Tests / Q000379:methods*; D012140:Respiratory Tract Diseases / Q000453:epidemiology*; D014797:Vital Capacity