title: Anorexia nervosa--a difficult diagnosis in boys. Illustrated by three cases.
mesh_terms: D000293:Adolescent; D000856:Anorexia Nervosa / Q000175:diagnosis* / Q000209:etiology; D002551:Cerebral Ventricle Neoplasms / Q000175:diagnosis; D002648:Child; D003550:Cystic Fibrosis / Q000175:diagnosis; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D012737:Sex Factors