Respiratory health status of children in three Quebec urban communities: an epidemiologic study.
D000397:Air Pollution; D002648:Child; D004391:Dust; D005260:Female; D006801:Humans; D008297:Male; D012119:Respiration; D012129:Respiratory Function Tests; D012737:Sex Factors; D013458:Sulfur Dioxide / Q000009:adverse effects; D011795:Surveys and Questionnaires; D014505:Urban Population
D004391:Dust; D013458:Sulfur Dioxide