idiopathic thrombocytopenia definitionidiopathic hypertension definitionidiopathic cardiomyopathy definitionidiopathic scoliosis definitionidiopathic epilepsy definitionidiopathic neuropathy definitiondefine idiopathicidiopathic medical definitionadverse effects of polycythemiaidiopathic meaningdefine idiopathic scoliosisdefine idiopathic epilepsy