TY - RPRT TI - Human beta-endorphin level determination. AU - K W Hindmarsh AU - K Sankaran AU - V G Watson PY - 1983 DO - 10.1016/s0022-3476(83)80504-6 UR - https://pubmed.ncbi.nlm.nih.gov/6313891/ ID - 6313891 ER -