Decreased prevalence of asthma among farm-reared children compared with those who are rural but not farm-reared
Keywords: دوران کودکی; Asthma; allergy; farm; epidemiology; childhood; ECRHS; European Community Respiratory Health Survey; ISAAC; International Study of Asthma and Allergies in Children; K-12; Kindergarten through 12th grade; LRI; Lower respiratory illness; MSA; Metropolitan s