Goncalves WA, Ferreira RCM, Rezende BM, Mahecha GAB, et al. Endogenous opioid and cannabinoid systems modulate the muscle pain: a
pharmacological study into the peripheral site. Eur J Pharmacol 2021 Apr 4:174089. doi: 10.1016/j.ejphar.2021.174089.
PMID: 33826922