title: Syncopal attacks compulsively self-induced by the Valsalva manoeuvre in children with mental retardation.
mesh_terms: D002648:Child; D002675:Child, Preschool; D003937:Diagnosis, Differential; D004569:Electroencephalography; D004827:Epilepsy / Q000175:diagnosis; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008607:Intellectual Disability / Q000150:complications*; D008297:Male; D013575:Syncope / Q000175:diagnosis / Q000209:etiology*; D014636:Valsalva Maneuver