1. Comparative analysis of individuals with and without chiropractic coverage: patient characteristics, utilization, and costs;Legorreta;Arch Intern Med,2004
2. The chiropractic workforce: a global review;Stochkendahl;Chiropr Man Ther,2019
3. World Federation of Chiropractic. Legal status of chiropractic by country. Available at: https://www.wfc.org/website/index.php?option=com_content&view=article&id=123&Itemid=139&lang=en. Accessed January 22, 2021.
4. International Chiropractic Regulatory Society. 2019 TOPICS 11th Annual Forum Berlin. Available at: https://www.chiroregulation.org/2019-forum-berlin.html. Accessed on January 22, 2021.
5. World Health Organization. WHO guidelines on basic training and safety in chiropractic. 2005. Available at:https://www.wfc.org/website/images/wfc/who_guidelines/who_guidelines_english.pdf. Accessed on October 27, 2018.