TY - JOUR T1 - Modulation of Peripheral <em>μ</em>-Opioid Analgesia by <em>σ</em><sub>1</sub> Receptors JF - Journal of Pharmacology and Experimental Therapeutics JO - J Pharmacol Exp Ther SP - 1 LP - 1 DO - 10.1124/jpet.114.0114HI VL - 348 IS - 1 A2 - , Y1 - 2014/01/01 UR - http://jpet.aspetjournals.org/content/348/1/1.1.abstract N2 - ER -