@article{pratali_nasreddine_diebo_oliveira_lafage_2018,  title={Normal values for sagittal spinal alignment: a study of Brazilian subjects},  volume={73},  ISSN={1807-5932},  url={https://doi.org/10.6061/clinics/2018/e647},  DOI={10.6061/clinics/2018/e647},  journal={Clinics},  publisher={Faculdade de Medicina / USP},  author={Pratali, Raphael R. and Nasreddine, Mohamed A. and Diebo, Bassel and Oliveira, Carlos Eduardo A.S. and Lafage, Virginie},  year={2018},  pages={e647} }