Validation of the self-administered version of the international Restless Legs Syndrome study group severity rating scale - The sIRLS.

Sharon D, Allen RP, Martinez-Martin P, Walters AS, Ferini Strambi L, Högl B, Trotti LM, Buchfuhrer M, Swieca J, Bogan RK, Zak R, Hensley JG, Schaefer LA, Marelli S, Zucconi M, Stefani A, Holzknecht E, Olvera V, Meaklim H, Laska I, Becker PM