Timeliness of diagnosis of asthma in children and its predictors.
D000293:Adolescent; D001249:Asthma / Q000175:diagnosis* / Q000453:epidemiology* / Q000276:immunology; D001250:Asthma, Exercise-Induced / Q000175:diagnosis / Q000453:epidemiology / Q000276:immunology; D002648:Child; D002675:Child, Preschool; D015331:Cohort Studies; D005260:Female; D006801:Humans; D008297:Male; D008910:Minnesota / Q000453:epidemiology; D012135:Respiratory Sounds / Q000175:diagnosis / Q000276:immunology; D012189:Retrospective Studies; D012307:Risk Factors; D013997:Time Factors