Jeffery, Caroline C Association between allergic rhinitis and asthma in a Northern Alberta cohort. [electronic resource] - Journal of otolaryngology - head & neck surgery = Le Journal d'oto-rhino-laryngologie et de chirurgie cervico-faciale Dec 2013 - 58 p. digital Publication Type: Journal Article ISSN: 1916-0216 Standard No.: 10.1186/1916-0216-42-58 doi Subjects--Topical Terms: AdultAlberta--epidemiologyAsthma--epidemiologyCohort StudiesCross-Sectional StudiesFemaleHumansMaleMiddle AgedPrevalenceRespiratory Function TestsRhinitis, Allergic, Perennial--epidemiologyRisk Factors