Cystic fibrosis mistaken for gastroesophageal reflux.
D003550:Cystic Fibrosis / Q000175:diagnosis*; D003937:Diagnosis, Differential; D005764:Gastroesophageal Reflux / Q000175:diagnosis*; D006801:Humans; D007223:Infant; D013542:Sweat / Q000032:analysis