Multicenter Study

Prevalence of postoperative pain in adolescent idiopathic scoliosis and the association with preoperative pain.

Spine. 2013 Oct 1;38(21):1848-52.
Article

The influence of comorbidity on the risks and benefits of spine surgery for degenerative lumbar disorders.

Eur Spine J. 2014 Apr 1; 23 Suppl 1: S66-71.
Comparative Study

Cross-cultural adaptation and assessment of the reliability and validity of the Core Outcome Measures Index (COMI) for the Brazilian-Portuguese language.

Eur Spine J. 2012 Jul 1;21(7):1273-82.