Smoking habits of physicians in Canada.
D001291:Attitude of Health Personnel; D002170:Canada; D002318:Cardiovascular Diseases / Q000209:etiology; D008171:Lung Diseases / Q000209:etiology; D008175:Lung Neoplasms / Q000209:etiology; D010820:Physicians; D012111:Residence Characteristics; D012907:Smoking; D013223:Statistics as Topic