Chen F, Gao W, Hu J, Yang X, Chai X, Wang D. Preoperative angiotensin II type 2 receptor is a predictor for developing chronic post-surgical pain after total knee arthroplasty surgery. Life Sci. 2021 Aug 01;278():119654. doi: 10.1016/j.lfs.2021.119654. PMID: 34043993.