Uji validitas dan reliabilitas kuesioner Scoliosis Research Society-22 Refined berbahasa Indonesia (SRS-22r INA) pada pasien adolescent idiopathic scoliosis di RSUPN Dr. Cipto Mangunkusumo = Validity and reliability study of Scoliosis Research Society-22 Refined Indonesian version (SRS-22r INA) questionnaire in adolescent idiopathic scoliosis in Cipto Mangunkusumo Hospital