World Health Organization
Acupuncture is effective based on clinical trials A list of diseases, symptoms or conditions for which acupuncture has been proved through controlled trials to be an effective treatment
http://www.evidencebasedacupuncture.org/who-official-position/
National Institutes of Health
Acupuncture and Low-Back Pain American Pain Society and the American College of Physicians in 2007 recommend acupuncture as one of several nondrug approaches physicians should consider when patients with chronic low-back pain
https://nccih.nih.gov/health/acupuncture/introduction#hed3
WebMD
Acupuncture and Neck Pain Acupuncture May Be Best to Treat Neck Pain
http://www.webmd.com/brain/news/20010629/acupuncture-may-be-est-to-ease-neck-pain
Acupuncture and Osteoarthritis/Knee Pain Improvement in Pain and Function Seen
http://www.webmd.com/osteoarthritis/news/20041019/acupuncture-helps-knee-osteoarthritis
What the Science Says About the Effectiveness of Acupuncture:
https://nccih.nih.gov/health/acupuncture/introduction#hed3
Memorial Sloan Kettering
Acupuncture and chronic pain Clinical Trials Analysis Finds Acupuncture Effective for Treating Chronic Pain:
https://www.mskcc.org/blog/clinical-trials-analysis-finds-acupuncture-effective-treating-chronic-pain
Bloomberg
Acupuncture and chronic pain Acupuncture Relieves Pain in Largest Study of Treatment
http://www.bloomberg.com/news/articles/2012-09-10/acupuncture-relieves-pain-in-largest-study-of-treatment
Acupuncture and Headaches Acupuncture works better than drugs like aspirin to reduce the severity and frequency of chronic headaches
http://www.reuters.com/article/2008/12/02/us-headaches-acupuncture-idUSTRE4B10V220081202
Links
Integrative Health
Acupuncture & Herbal Medicine
Let the Healing Begin