Comparison of Antinociceptive Effects of Morphine Between Male and Female Rats244Nemati Karimooy, FaezehStudent, MedicalHosseini, Mahmoud PhDAuthor information(1)Mashhad University of Medical Sciences, Mashhad, Khorasan Razavi, Iran[email protected]Pain Medicine 13(2):p 334, February 2012.Copyright © 2012 Blackwell Publishing Ltd.