Development and Validation of the Dystonia-Pain Classification System: A Multicenter Study - Listik, Clarice; Limongi, Joao Carlos Papaterra; Listik, Eduardo; Rolim, Flavia de Paiva Santos; Portela, Denise Maria Meneses Cury; Perez-Lloret, Santiago; Araujo, Natalia Rebeca de Alves; Carvalho, Pedro Rubens Araujo; Santos, Graziele Costa; Cardoso, Francisco; Fernandes, Ana Mercia Barbosa Leite; Barbosa, Egberto Reis; et al. (Movement disorders, 2023)