1. Meeker WC, Haldeman S. Chiropractic: A profession at the crossroads of mainstream and alternative medicine. Ann Intern Med 2002;136:216-227.
  4. Hartvigsen J, Sorensen LP, Graesborg K, Grunnet-Nilssn N. Chiropractic patients in Denmark: A short description of basic characteristics. J Manipulative Physiol Ther 2002;25:162-7.
  5. Sorensen LP, Stochkendahl MJ, Hartvigsen J, Grunnet-Nilsson N. Chiropractic patients in Denmark 2002: An expended description and comparison with 1999 survey. J Manipulative Physiol Ther 2006;29:419-424.
  6. Hurwitz E. Epidemiology: Spinal manipulation utilization. J Electromyogr Kinesiol. 2012 Jan 28. [Epub ahead of print].
  7. Evans DW. Why do spinal manipulation techniques take the form they do? Towards a general model of spinal manipulation. Man Ther 2010;15:212-9.
  8. Poulsen E, Christensen HW, Overgaard S, Hartvigsen J. Prevalence of hip osteoarthritis in chiropractic practice in Denmark. A descriptive cross-sectional and prospective study. J Manipulative Physiol Ther 2012 mar 15. [Epub ahead of print].
  9. Brantingham JW, Bonnefin D, Perle SM, Cassa TK, Globe G, Pribicevic M, Hicks M, Korporaal C. Manipulative therapy for lower extremity conditions: update of a systematic review. J Manipulative Physiol Ther 2012;35:127-66.
  10. Hestbaek L, Jorgensen A, Hartvigsen J. A description of children and adolescents in Danish chiropractic practice: Results from a nationwide survey: J Manipulative Physiol Ther 2009;32:607-15.
  11. Rubinstein SM, van Middelkoop, Assendelft WJ, de Boer MR, van Tulder MW. Spinal manipulative therapy for chronic low back pain: an update of a Cochrane review. Spine 2011;36:E825-36.
  12. Walker BF, French SD, Grant W, Green S. Combined chiropractic interventions for low back pain. Cochrane Database Syst Rev 2010;4:CD005427.
  13. Gross A, Miller J, D’Sylva J, Burnie SJ, Goldsmith CH, Graham N, Haines T, Bronfort G, Hoving JL. Manipulation or mobilisation for neck pain. Cochrane database Syst Rev;1:CD004249.
  14. Bronfort G, Evans R, Anderson AV, Svendsen KH, Bracha Y, Grimm RH. Spinal manipulation, medication, or home exercise with advice for acute and subacute neck pain: a randomized trial. Ann Intern Med 2012;156:1-10.
  15. Stochkendahl MJ, Christensen HW, Vach W, Høilund-Carlsen PF, Haghfelt T, Hartvigsen J. Chiropractic treatment vs self-management in patients with acute chest pain: a randomized controlled trial of patients without acute coronary syndrome. J Manipulative Physiol Ther 2012;35:7-17.
  16. Bronfort G, Nilsson N, Haas M, Evans R, Goldsmith CH, Assendelft WJ, Bouter LM.Non-invasive physical treatments for chronic/recurrent headache. Cochrane database Syst Rev 2004;3:CD001878.
  17. Leboeuf-Yde C, Axén I, Jones JJ, Rosenbaum A, Løvgren PW, Halasz L, Larsen K. The Nordic back pain subpopulation program: The long-term outcome pattern of patients with low-back pain treated by chiropractors in Sweden. J Manipulative Physiol Ther 2005;28:472-8.
  18. Hayden JA, van Tulder MW, Malmivaara A, Koes B. Exercise therapy for treatment of non-specific low back pain. Cochrane database Syst Rev 2005;3:CD000335.
  20. Senstad O, Leboeuf-Yde C, Borchgrevink CF. Side-effects of chiropractic spinal manipulation: types, frequency, discomfort, and course. Scand J Peim Health Care 1996;14:50-3.
  21. Cassidy JD, Boyle E, Côté P, He Y, Hogg-Johnson S, Silver FL, Bondy SJ. Risk of vertebrobasilar stroke and chiropractic care: results of a population-based case-control and case-crossover study. Spine 2008;33:S176-83.