RT Journal Article SR Electronic T1 Heroin use, diplopia, largactil JF Neurosciences Journal JO Neurosciences (Riyadh) FD Prince Sultan Military Medical City SP 70 OP 70 VO 6 IS 1 A1 Iqbal, Nayyer YR 2001 UL http://nsj.org.sa/content/6/1/70.abstract AB