RT Journal Article SR Electronic T1 Metformin-induced paroxysmal dystonia JF Neurosciences Journal JO Neurosciences (Riyadh) FD Prince Sultan Military Medical City SP 194 OP 195 VO 13 IS 2 A1 Filiz Koc A1 Deniz Yerdelen YR 2008 UL http://nsj.org.sa/content/13/2/194.abstract AB