Morphine analgesia, tolerance and addiction in the cricket Pteronemobius sp. (Orthoptera, Insecta). - PubMed - NCBIPharmacol Biochem Behav. 1991 Dec;40(4):887-91. Research Support, Non-U.S. Gov'tEthik & Tierrecht#insekten#schmerz#empfinden#studie·www.ncbi.nlm.nih.gov·Jan 17, 2019Morphine analgesia, tolerance and addiction in the cricket Pteronemobius sp. (Orthoptera, Insecta). - PubMed - NCBI