TY - RPRT TI - Acetaminophen may act through beta endorphin. AU - H Sprott AU - H Shen AU - S Gay AU - A Aeschlimann PY - 2005 DO - 10.1136/ard.2004.033712 UR - https://pubmed.ncbi.nlm.nih.gov/16162910/ ID - 16162910 ER -