Randomized Controlled Trial
Effectiveness of mat Pilates or equipment-based Pilates exercises in patients with chronic nonspecific low back pain: a randomized controlled trial.
Phys Ther. 2014 May 1;94(5):623-31.
Randomized Controlled Trial
Comparison of spinal fusion and nonoperative treatment in patients with chronic low back pain: long-term follow-up of three randomized controlled trials.
Spine J. 2013 Nov 1;13(11):1438-48.
Randomized Controlled Trial
Outcomes are not different for patient-matched versus nonmatched treatment in subjects with chronic recurrent low back pain: a randomized clinical trial.
Spine J. 2014 Dec 1;14(12):2799-810.