Pharmacology and anti‐addiction effects of the novel κ opioid receptor agonist<scp>M</scp>esyl<scp>S</scp>al<scp>B</scp>, a potent and long‐acting analogue of salvinorin<scp>A</scp>Bridget Simonson, Bronwyn M. Kivell, Amy Ewald et al.|British Journal of Pharmacology|2014Cited by 64