Geographic variation in deaths due to emphysema and bronchitis in Canada.
D001991:Bronchitis / Q000453:epidemiology; D002170:Canada; D002908:Chronic Disease; D003644:Death Certificates; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D009026:Mortality; D011656:Pulmonary Emphysema / Q000453:epidemiology*; D012140:Respiratory Tract Diseases / Q000453:epidemiology; D013223:Statistics as Topic