Is the Cranial Sagittal Vertical Axis (Cr-SVA) a Better Midterm Predictor of Clinical Results Than C7-SVA in Adult Patients Operated on Spinal Deformity After a Minimum 2-Year Follow-Up? - Gomez-Rice A; Madrid C; Izquierdo E; Marco-Martínez F; Tresguerres JAF; Sanchez-Mariscal F (Clinical spine surgery, 2021)