RT Journal Article SR Electronic T1 Heroin use, diplopia, largactil. JF Saudi Medical Journal JO Saudi Med J FD Prince Sultan Military Medical City SP 1194 OP 1194 VO 21 IS 12 A1 Iqbal, Nayyer YR 2000 UL http://smj.org.sa/content/21/12/1194.1.abstract AB