TY - RPRT TI - beta-Endorphin: complete primary structure is required for full analgesic activity. AU - C H Li AU - L F Tseng AU - D Yamashiro PY - 1978 DO - 10.1016/0006-291x(78)91232-9 UR - https://pubmed.ncbi.nlm.nih.gov/736937/ ID - 736937 ER -