@article{article329a966a,
title   = {Does the use of dynamic surgical guidance assist accurate pedicle screw placement in patients with osteoporosis or osteopenia ?},
author = {Defino, Helton Luiz Aparecido and Williams, John and Williams, Georgia Lea and George, Keri and Betz, Randal R and Powell, David and Gaughan, John and Bourlion, Maurice},
year = {2020},
doi = {10.1590/S1808-185120201903236062},
journal   = {Coluna/Columna}
}