TY - RPRT TI - beta-Endorphin in human plasma: basal and pathologically elevated levels. AU - V Höllt AU - O A Müller AU - R Fahlbusch PY - 1979 DO - 10.1016/0024-3205(79)90487-9 UR - https://pubmed.ncbi.nlm.nih.gov/225627/ ID - 225627 ER -