Meta Analysis

Perioperative intravenous ketamine for acute postoperative pain in adults.

Cochrane Db Syst Rev. 2018 Dec 20; 12: CD012033.
Review

Analgesic effects of alcohol: A systematic review and meta-analysis of controlled experimental studies in healthy participants.

J Pain. 2017 May 1; 18 (5): 499510499-510.
Review

Non-invasive brain stimulation techniques for chronic pain.

Cochrane Db Syst Rev. 2018 Apr 13; 4: CD008208.