Is Free Hand Technique for Pedicle Screw Insertion Safe in Setup Lacking Advance Navigation System?. Journal of Pakistan Orthopaedic Association, [S. l.], v. 33, n. 01, p. 08–12, 2021. Disponível em: https://mail.jpoa.org.pk/index.php/upload/article/view/493. Acesso em: 16 apr. 2026.