1. Regional variation in use of complementary health approaches by U.S. adults;Peregoy;NCHS Data Brief,2014
2. Complementary and alternative medicine use in Canada and the United States;McFarland;Am J Public Health,2002
3. Patient attitudes, insurance, and other determinants of self-referral to medical and chiropractic physicians;Sharma;Am J Public Health,2003
4. Manipulating the patient. A comparison of the effectiveness of physician and chiropractor care;Kane;Lancet,1974
5. Patient evaluations of low back pain care from family physicians and chiropractors;Cherkin;West J Med,1989