Cooper RA: Weighing the evidence for expanding physician supply. Ann Intern Med. 2004, 141: 705-714.
Cooper RA: Myth and reality underlying the needed expansion of graduate medical education. Gastroenterology. 2009, 136: 2045-2047. 10.1053/j.gastro.2009.04.024.
Cooper RA: Expanding physician supply - an imperative for health care reform. Pharos Alpha Omega Alpha Honor Med Soc. 2010, 73: 35-37.
Goodman DC, Grumbach K: Does having more physicians lead to better health system performance?. JAMA. 2008, 299: 335-337. 10.1001/jama.299.3.335.
Goodman DC: Twenty-year trends in regional variations in the U.S. physician workforce. 2004, Suppl Variation: Health Aff (Millwood), 90-97.
Chang CH, Stukel TA, Flood AB, Goodman DC: Primary care physician workforce and Medicare beneficiaries' health outcomes. JAMA. 2011, 305: 2096-2104. 10.1001/jama.2011.665.
Cooper RA: New directions for nurse practitioners and physician assistants in the era of physician shortages. Acad Med. 2007, 82: 827-828. 10.1097/ACM.0b013e31812f7939.
Jones PE: Physician assistant education in the United States. Acad Med. 2007, 82: 882-887. 10.1097/ACM.0b013e31812f7c0c.
Jones PE, Cawley JF: Workweek restrictions and specialty-trained physician assistants: potential opportunities. J Surg Educ. 2009, 66: 152-157. 10.1016/j.jsurg.2009.03.033.
Barnes PM, Bloom B, Nahin RL: Complementary and alternative medicine use among adults and children: United States, 2007. National Health Statistics Reports. 2008, 12: 1-23.
Davis MA, West AN, Weeks WB, Sirovich BE: Health behaviors and utilization among users of complementary and alternative medicine for treatment versus health promotion. Health Serv Res. 2011, 46: 1402-1416. 10.1111/j.1475-6773.2011.01270.x.
Martin BI, Deyo RA, Mirza SK, Turner JA, Comstock BA, Hollingworth W, Sullivan SD: Expenditures and health status among adults with back and neck problems. JAMA. 2008, 299: 656-664. 10.1001/jama.299.6.656.
Martin BI, Turner JA, Mirza SK, Lee MJ, Comstock BA, Deyo RA: Trends in Health Care Expenditures, Utilization, and Health Status Among US Adults With Spine Problems, 1997-2006. Spine (Phila Pa 1976). 2009, 34: 2077-2084. 10.1097/BRS.0b013e3181b1fad1.
Andersson GB: Epidemiological features of chronic low-back pain. Lancet. 1999, 354: 581-585. 10.1016/S0140-6736(99)01312-4.
Hart LG, Deyo RA, Cherkin DC: Physician office visits for low back pain. Frequency, clinical evaluation, and treatment patterns from a U.S. national survey. Spine (Phila Pa 1976). 1995, 20: 11-19. 10.1097/00007632-199501000-00003.
Cherkin DC, Deyo RA, Sherman KJ, Hart LG, Street JH, Hrbek A, Davis RB, Cramer E, Milliman B, Booker J, Mootz R, Barassi J, Kahn JR, Kaptchuk TJ, Eisenberg DM: Characteristics of visits to licensed acupuncturists, chiropractors, massage therapists, and naturopathic physicians. J of Am Board Fam Med. 2002, 15: 463-472.
Smith M, Carber LA: Chiropractors as safety net providers: first report of findings and methods from a US survey of chiropractors. J Manipulative Physiol Ther. 2007, 30: 718-728. 10.1016/j.jmpt.2007.11.001.
Smith M, Morschhauser S: Establishing a database of U.S. chiropractic health manpower data: furthering the development of research infrastructure. 1999, Meeting: Association for Health Services Research
Davis MA, Davis AM, Luan J, Weeks WB: The supply and demand of chiropractors in the United States from 1996 to 2005. Altern Ther Health Med. 2009, 15: 36-40.
United States Bureau of Labor Statistics: Employment Projections: National Employment Matrix: 29-1011 Chiropractors. 2011, Available at: http://www.bls.gov/emp/empoils.htm
Goodman DC, Fisher ES, Bronner KK: Hospital and Physician Capacity Update: A Brief Report from the Dartmouth Atlas of Health Care. 2009, Lebanon, NH: The Dartmouth Institute for Health Policy and Clinical Practice
RUCA: Rural Health Research Center. 2011,http://depts.washington.edu/uwruca/,
Cooper RA, McKee HJ: Chiropractic in the United States: trends and issues. Milbank Q. 2003, 81: 107-138. 10.1111/1468-0009.00040.
Smith M, Carber L: Chiropractic health care in health professional shortage areas in the United States. Am J Public Health. 2002, 92: 2001-2009. 10.2105/AJPH.92.12.2001.
Whedon JM, Song Y, Davis MA, Lurie JD: Use of Chiropractic Spinal Manipulation in Older Adults is Strongly Correlated with Supply. Spine (Phila Pa 1976). 2012, 37: 1771-7. 10.1097/BRS.0b013e31825762b7.
Gaumer GL, Walker A, Su S: Chiropractic and a new taxonomy of primary care activities. J Manipulative Physiol Ther. 2001, 24: 239-259. 10.1067/mmt.2001.114366.
Teitelbaum M: The role of chiropractic in primary care: findings of four community studies. J Manipulative Physiol Ther. 2000, 23: 601-609. 10.1067/mmt.2000.110945.
Gaumer G, Koren A, Gemmen E: Barriers to expanding primary care roles for chiropractors: The role of chiropractic as primary care gatekeeper. J Manipulative Physiol Ther. 2002, 25: 427-449. 10.1067/mmt.2002.126474.
Greene BR, Smith M, Allareddy V, Haas M: Referral patterns and attitudes of primary care physicians towards chiropractors. BMC Complement Altern Med. 2006, 6: 5-10.1186/1472-6882-6-5.
Allareddy V, Greene BR, Smith M, Haas M, Liao J: Facilitators and barriers to improving interprofessional referral relationships between primary care physicians and chiropractors. J Ambul Care Manage. 2007, 30: 347-354.
Curtis P, Bove G: Family physicians, chiropractors, and back pain. J Fam Pract. 1992, 35: 551-555.
Davis MA, Onega T, Weeks W, Lurie J: Where the United States Spends its Spine Dollars: Expenditures on different ambulatory services for the management of back and neck conditions. Spine (Phila Pa 1976). 2012, 37: 1693-1701. 10.1097/BRS.0b013e3182541f45.
Cote P, Cassidy JD, Carroll L: The treatment of neck and low back pain: who seeks care? who goes where?. Med Care. 2001, 39: 956-967. 10.1097/00005650-200109000-00006.
Davis MA, Whedon JM, Weeks WB: Complementary and alternative medicine practitioners and Accountable Care Organizations: the train is leaving the station. J Altern Complement Med. 2011, 17: 669-674. 10.1089/acm.2011.0364.
Davis MA, Sirovich BE, Weeks WB: Utilization and expenditures on chiropractic care in the United States from 1997 to 2006. Health Serv Res. 2010, 45: 748-761.