Review

Lumbar spine fusion for chronic low back pain due to degenerative disc disease: a systematic review.

Spine. 2013 Apr 1; 38 (7): E409-22.
Randomized Controlled Trial

Psychometric properties of selected tests in patients with lumbar spinal stenosis.

Spine J. 2012 Oct 1;12(10):921-31.
Randomized Controlled Trial

Health-related quality of life in a randomized trial of antiretroviral therapy for advanced HIV disease.

J. Acquir. Immune Defic. Syndr. 2009 Jan 1;50(1):27-36.