title: Preschool asthma--not so easy to diagnose.
authors.forename: Søren
authors.initials: S
authors.lastname: Pedersen
mesh_terms: D001249:Asthma / Q000175:diagnosis*; D002675:Child, Preschool; D003371:Cough / Q000209:etiology; D003937:Diagnosis, Differential; D006801:Humans; D007223:Infant; D012135:Respiratory Sounds / Q000209:etiology