Here are some helpful links:
- American Physical Therapy Association
- American College of Sports Medicine
- American Medical Association
- National Institute on Aging
- Centers for Medicare & Medicaid Services
- WebMD
- American Senior Fitness Association
- MEDLINEplus
- American Society of Anesthesiologists
- ASRA Pain Medicine
- American Society of Pain & Neuroscience
- American Society of Interventional Pain Physicians