2017-06-302026-03-272017-06-301998Tomás Martínez Ibarra0021-9967https://doi.org/10.1002/(SICI)1096-9861(19980928)399:3<373::AID-CNE6>3.0.CO;2-Yhttps://repositorio.inprf.gob.mx/handle/123456789/7091engacceso cerradoORL-1 and mu opioid receptor antisera label different fibers in areas involved in pain processingarticle1096-98613Instituto Nacional de Psiquiatría Ramón de la Fuente Muñiz, México.373-383New York399