Low doses of cannabis extract ameliorate non-motor symptoms of Parkinson’s disease patients: a case series - Ruver-Martins, Ana Carolina; Martinez, Ingrid Andrea Rodriguez; Holla, Vinicius Giesel; Souza, Beatriz Larentis de; Silva, Elton Gomes da; Novoa, Diana Marcela Aragon; Souza-Silva, Eduardo; Araujo, Fabiano Soares; Prediger, Rui Daniel; Nascimento, Francisney Pinto do (Frontiers in Human Neuroscience, 2025)