title: Extinction of a phobia of physical examination in a seven-year-old mentally retarded boy--a case study.
mesh_terms: D001007:Anxiety / Q000517:prevention & control; D002648:Child; D005108:Extinction, Psychological; D006801:Humans; D008607:Intellectual Disability / Q000150:complications*; D008297:Male; D009723:Nurse-Patient Relations; D010698:Phobic Disorders / Q000628:therapy*; D010808:Physical Examination