Excellent analysis of the systematic review released in June 2018 by the Agency for Healthcare Research and Quality (AHRQ), an agency of the US Health and Human Services Department.

https://www.practicalpainmanagement.com/resources/practice-management/behind-ahrq-report

•Richard A. Lawhern, PhD,  is a technically trained non-physician with 20 years of experience in peer-to-peer patient support groups for chronic pain patients.