Butz, A M Passive smoking among children with chronic respiratory disease. [electronic resource] - The Journal of asthma : official journal of the Association for the Care of Asthma 1992 - 265-72 p. digital Publication Type: Comparative Study; Journal Article ISSN: 0277-0903 Standard No.: 10.3109/02770909209048941 doi Subjects--Topical Terms: AdultArthritis, Juvenile--epidemiologyAsthma--epidemiologyChildCross-Sectional StudiesCystic Fibrosis--epidemiologyFemaleHumansMaleMaryland--epidemiologyParentsPrevalenceRegression AnalysisSmoking--epidemiologySmoking Cessation--statistics & numerical dataTobacco Smoke Pollution--statistics & numerical data