Cystic fibrosis.
D002675:Child, Preschool; D003550:Cystic Fibrosis / Q000175:diagnosis / Q000451:nursing* / Q000523:psychology; D005190:Family; D006801:Humans; D008297:Male; D010379:Peer Group; D012649:Self Concept; D013315:Stress, Psychological / Q000628:therapy