Prader-Willi syndrome.

Abnormalities, Multiple/diagnosis Adolescent Child Child, Preschool Diagnosis, Differential Dwarfism, Pituitary/diagnosis,drug therapy Facial Expression Female Humans Hypogonadism/diagnosis,therapy Infant Infant, Newborn Intellectual Disability/diagnosis Male Muscle Hypotonia/diagnosis,therapy Obesity/diagnosis,therapy Prader-Willi Syndrome/diagnosis,etiology,therapy Social Behavior Disorders/diagnosis