L-Methionine Attenuates Acute Inflammatory Pain Caused by Formaldehyde Solution by Regulating the Level of DNA Methylation in Spinal Cord 
LUAN Shunlian,LI Yuna,JIN Dan,GAO Yong,WANG Deqiang,SHAO Cuijie
Chinese General Practice . 2020, (18): 2294 -2299 .  DOI: 10.12114/j.issn.1007-9572.2020.00.249