citation_journal_title=Physiotherapy; citation_title=National Practice Guideline for the physiotherapeutic management of patients with low back pain; citation_author=GE Bekkering, HJM Hendriks, BW Koes, RAB Oostendorp, RWJG Ostelo, JMC Thomassen, MW Tulder; citation_volume=89; citation_publication_date=2003; citation_pages=82-96; citation_doi=10.1016/S0031-9406(05)60579-2; citation_id=CR1
citation_journal_title=Low back pain: outcome measures. J Rheumatol; citation_title=Minimal clinically important difference; citation_author=C Bombardier, J Hayden, DE Beaton; citation_volume=28; citation_publication_date=2001; citation_pages=431-438; citation_id=CR2
citation_journal_title=Ann Rheum Dis; citation_title=Studies with pain rating scales; citation_author=WW Downie, PA Leatham, VM Rhind, V Wright, JA Branco, JA Anderson; citation_volume=37; citation_publication_date=1978; citation_pages=378-381; citation_doi=10.1136/ard.37.4.378; citation_id=CR3
citation_journal_title=Pain; citation_title=Clinical importance of changes in chronic pain intensity measured on an 11-point numerical pain rating scale; citation_author=JT Farrar, JP Young, L LaMoreaux, JL Werth, RM Poole; citation_volume=94; citation_publication_date=2001; citation_pages=149-158; citation_doi=10.1016/S0304-3959(01)00349-9; citation_id=CR4
citation_title=Manual trimbos/iMTA questionnaire for costs associated with psychiatric illness (TiC-P); citation_publication_date=2002; citation_id=CR5; citation_author=L Hakkaart-van Roijen; citation_author=A Straten; citation_author=M Donker; citation_author=M Tiemens; citation_publisher=Rotterdam Institute for Medical Technology Assessment, Erasmus University
citation_journal_title=Ann Intern Med; citation_title=Meta-analysis: exercise therapy for nonspecific low back pain; citation_author=JA Hayden, MW Tulder, AV Malmivaara, BW Koes; citation_volume=142; citation_publication_date=2005; citation_pages=765-775; citation_id=CR6
citation_journal_title=Eur Spine J; citation_title=Low back pain: what is the long-term course? A review of studies of general patient populations; citation_author=L Hestbaek, C Leboeuf-Yde, C Manniche; citation_volume=12; citation_publication_date=2003; citation_pages=149-165; citation_id=CR7
citation_journal_title=Spine; citation_title=Back schools for nonspecific low back pain: a systematic review within the framework of the Cochrane Collaboration Back Review Group; citation_author=MW Heymans, MW Tulder, R Esmail, C Bombardier, BW Koes; citation_volume=30; citation_issue=19; citation_publication_date=2005; citation_pages=2153-2163; citation_doi=10.1097/01.brs.0000182227.33627.15; citation_id=CR8
citation_journal_title=J Clin Epidemiol; citation_title=A minimal clinically important difference was derived for the Roland-Morris Disability Questionnaire for low back pain; citation_author=K Jordan, KM Dunn, M Lewis, P Croft; citation_volume=59; citation_publication_date=2006; citation_pages=45-52; citation_doi=10.1016/j.jclinepi.2005.03.018; citation_id=CR9
citation_journal_title=Pain Management; citation_title=Kinesiophobia: a new view of chronic pain behaviour; citation_author=SH Kori, RP Miller, DD Todd; citation_volume=3; citation_publication_date=1990; citation_pages=35-42; citation_id=CR10
citation_journal_title=Int J Behav Med; citation_title=Pain-coping strategies in chronic pain patients: psychometric characteristics of the pain-coping inventory (PCI); citation_author=FW Kraaimaat, AW Evers; citation_volume=10; citation_issue=4; citation_publication_date=2003; citation_pages=343-363; citation_doi=10.1207/S15327558IJBM1004_5; citation_id=CR11
citation_journal_title=Phys Ther; citation_title=The effect of graded activity on patients with subacute low back pain: a randomized prospective clinical study with an operant-conditioning behavioral approach; citation_author=I Lindstrom, C Ohlund, C Eek, L Wallin, LE Peterson, WE Fordyce; citation_volume=72; citation_publication_date=1992; citation_pages=279-290; citation_id=CR12
citation_journal_title=Curr Opin Rheumatol; citation_title=Epidemiology of back disorders: prevalence, risk factors, and prognosis; citation_author=NJ Manek, AJ MacGregor; citation_volume=17; citation_publication_date=2005; citation_pages=134-140; citation_id=CR13
citation_journal_title=Eur J Pain; citation_title=The pain self-efficacy questionnaire: taking pain into account; citation_author=MK Nicholas; citation_volume=11; citation_issue=2; citation_publication_date=2007; citation_pages=153-163; citation_doi=10.1016/j.ejpain.2005.12.008; citation_id=CR14
citation_journal_title=Man Ther; citation_title=Health care provider’s attitudes and beliefs towards chronic low back pain: the development of a questionnaire; citation_author=RW Ostelo, SG Stomp-van den Berg, JW Vlaeyen, PM Wolters, HC Vet; citation_volume=8; citation_publication_date=2003; citation_pages=214-222; citation_doi=10.1016/S1356-689X(03)00013-4; citation_id=CR15
Ostelo R, Tulder M, Vlaeyen J, Linton S, Morley S, Assendelft W (2005) Behavioural treatment for chronic low-back pain. Cochrane Database Syst Rev CD002014
citation_journal_title=Pain; citation_title=Musculoskeletal pain in The Netherlands: prevalences, consequences and risk groups, the DMC(3)-study; citation_author=HS Picavet, JS Schouten; citation_volume=102; citation_publication_date=2003; citation_pages=167-178; citation_doi=10.1016/s0304-3959(02)00372-x; citation_id=CR17
citation_journal_title=Spine; citation_title=A study of the natural history of back pain. Part I: development of a reliable and sensitive measure of disability in low-back pain; citation_author=M Roland, R Morris; citation_volume=8; citation_publication_date=1983; citation_pages=141-144; citation_doi=10.1097/00007632-198303000-00004; citation_id=CR18
citation_journal_title=Ann Intern Med; citation_title=Graded activity for low back pain in occupational health care: a randomized, controlled trial; citation_author=JB Staal, H Hlobil, JW Twisk, T Smid, AJ Koke, W Mechelen; citation_volume=140; citation_publication_date=2004; citation_pages=77-84; citation_id=CR19
citation_title=Daling in de vraag naar fysiotherapie en oefentherapie in het jaar 2004; citation_publication_date=2005; citation_id=CR20; citation_author=I Swinkels; citation_author=D Sonsbeeck; citation_author=D Bakker; citation_publisher=NIVEL
citation_journal_title=BMJ; citation_title=Predicting who develops chronic low back pain in primary care: a prospective study; citation_author=E Thomas, AJ Silman, PR Croft, AC Papageorgiou, MI Jayson, GJ Macfarlane; citation_volume=318; citation_publication_date=1999; citation_pages=1662-7; citation_id=CR21
van der Roer N, Van Tulder MW, Barendse JM, van Mechelen W, Franken WK, Ooms AC (2004) Cost-effectiveness of an intensive group training protocol compared to physiotherapy guideline care for sub-acute and chronic low back pain: design of a randomised controlled trial with an economic evaluation. [ISRCTN45641649]. BMC Musculoskelet Disord;5:45
citation_journal_title=Spine; citation_title=Minimal clinically important change for pain intensity, functional status, and general health status in patients with nonspecific low back pain; citation_author=N Roer, RW Ostelo, GE Bekkering, MW Tulder, HC Vet; citation_volume=31; citation_publication_date=2006; citation_pages=578-582; citation_doi=10.1097/01.brs.0000201293.57439.47; citation_id=CR23
citation_journal_title=Spine; citation_title=Economic evaluation of an intensive group training protocol compared with usual care physiotherapy in patients with chronic low back pain; citation_author=N Roer, M Tulder, W Mechelen, H Vet; citation_volume=33; citation_publication_date=2008; citation_pages=445-451; citation_doi=10.1097/BRS.0b013e318163fa59; citation_id=CR24
citation_journal_title=Int J Technol Assess Health Care; citation_title=Labor and health status in economic evaluation of health care. The Health and Labor Questionnaire; citation_author=L Roijen, ML Essink-Bot, MA Koopmanschap, G Bonsel, FF Rutten; citation_volume=12; citation_publication_date=1996; citation_pages=405-415; citation_id=CR25