Endogenous opioid release in the human brain reward system induced by acute amphetamine administration

Alessandro Colasanti, Graham E Searle, Christopher J Long, Samuel P Hill, Richard R Reiley, Darren Quelch, David Erritzoe, Andri C Tziortzi, Laurence J Reed, Anne R Lingford-Hughes, Adam D Waldman, Koen R J Schruers, Paul M Matthews, Roger N Gunn, David J Nutt, Eugenii Rabiner