Chronic low back pain.
van Tulder
Maurits
M
VU University Medical Centre, Amsterdam, The Netherlands.
Koes
Bart
B
D002908:Chronic Disease; D006801:Humans; D015994:Incidence; D017116:Low Back Pain / Q000453:epidemiology / Q000209:etiology / Q000628:therapy*; D011379:Prognosis