General Internal Medicine Greater Los Angeles Veterans Administrative Health Care System Santa Monica, California, USA
Pengel LM, Herbert RD, Maher C, et al. Acute low back pain: systematic review of its prognosis. BMJ 2003;327:323–5.PengelLMHerbertRDMaherCet alAcute low back pain: systematic review of its prognosis.BMJ2003327323-5Q What is the natural and clinical course of acute low back pain, and what are the prognostic factors that influence this course?
For correspondence: Dr R D Herbert, University of Sydney, Lidcombe, NSW, Australia. [email protected]
Sources of funding: National Health and Medical Research Council, Australia and Australasian Physiotherapy Low Back Pain Trial Consortium.