Variation in Sagittal Alignment Parameters in Adult Patients before Spine Surgery: A Serial Imaging Study Using Antero-Posterior and Latero-Lateral Projections. - Lim, Hunjong; Lee, Eugene; Lee, Joon-Woo; Kim, Bo-Ram; Kang, Yusuhn; Ahn, Joong-Mo (Diagnostics (2075-4418), 2021)