American Physical Therapy Association
www.APTA.org
Michigan Physical Therapy Association
www.MPTA.org
National Athletic Training Association
www.NATA.org
American College of Sports Medicine
www.acsm.org
American Medical Association
www.ama-assn.org
Centers for Medicare and Medicaid Services
www.cms.gov
MEDLINEplus
www.nlm.nih.gov/medlineplus
WebMD
www.webmd.com
National Institute on Aging
www.nia.nih.gov
American Senior Fitness Association
www.seniorfitness.net