@misc{indiciae0f015e56631e, title = {beta-endorphin is a potent analgesic agent.}, author = {H H Loh and L F Tseng and E Wei and C H Li}, year = {1976}, doi = {10.1073/pnas.73.8.2895}, url = {https://pubmed.ncbi.nlm.nih.gov/8780/}, note = {Source identifier: 8780} }