Spinopelvic sagittal balance: what does the radiologist need to know ? - Savarese, Leonor Garbin; Menezes-Reis, Rafael; Bonugli, Gustavo Perazzoli; Herrero, Carlos Fernando Pereira da Silva; Defino, Helton Luiz Aparecido; Nogueira-Barbosa, Marcello Henrique (Radiologia Brasileira, 2020)