Association between lumbar spine sagittal alignment and L4-L5 disc degeneration among asymptomatic young adults - Menezes-Reis, Rafael; Bonugli, Gustavo Perazzoli; Dalto, Vitor Faeda; Herrero, Carlos Fernando Pereira da Silva; Defino, Helton Luiz Aparecido; Nogueira-Barbosa, Marcello Henrique (Spine, 2016)