Abductor sign: a reliable new sign to detect unilateral non-organic paresis of the lower limb M SonooCorrespondence to: Dr Masahiro Sonoo Department of Neurology, Teikyo University School of Medicine, Kaga 2-11-1, Itabashi-ku, Tokyo 1738605, Japan; sonoommed.teikyo-u.ac.jp Abstract Objectives: To test a new neurological sign, the “abductor sign,” which can distinguish between organic and non-org