1. Restless legs;Ekbom;Acta Med Scand,1945
2. The pre-dormitum;Critchley;Rev Neurol,1955
3. Willis T . De Anima Brutorum Quae Hominis Vitalis Ac Sensitiva Est, Exercitationes Duae. Amsterdam: Blaeu; 1672:239–240. Quotation taken from the English translation of 1683; see Willis T, Pordage S (transl). Two Discourses Concerning the Soul of Brutes which is that of the Vital and Sensitive of Man. London: Dring, Harper and Leigh; 1683:139.
4. Wittmaack T . Lehrbuch der Nervenkrankheiten, Teil 1: Pathologie und Therapie der sensiblen Neurosen. Leipzig: Schäfer; 1861:459.
5. Two early descriptions of restless legs syndrome and periodic leg movements by Boissier de Sauvages (1763) and Gilles de la Tourette (1898);Konofal;Sleep Med,2009