Cannabinoids in Neurology - Position paper from Scientific Departments from Brazilian Academy of Neurology - Brucki, Sonia Maria Dozzi; Adoni, Tarso; Almeida, Carlos Mauricio Oliveira de; Andrade, Daniel Ciampi de; Anghinah, Renato; Barbosa, Luciana Mendonca; Bazan, Rodrigo; Carvalho, Alzira Alves de Siqueira; Carvalho, William; Christo, Paulo Pereira; Zanoteli, Edmar (Arquivos de neuro-psiquiatria, 2021)