TY - RPRT TI - Beta-endorphin responsiveness in depression. AU - M A Morphy AU - G A Fava AU - N Sonino PY - 1993 DO - 10.1001/archpsyc.1993.01820170092011 UR - https://pubmed.ncbi.nlm.nih.gov/8387766/ ID - 8387766 ER -