title: Unusual early symptoms of Parkinson's disease. Why do we need to identify them?
authors.affiliation: Universidade Federal de São Paulo, Escola Paulista de Medicina, Disciplina de Neurologia, Setor de Distúrbios do Movimento, São Paulo SP, Brasil.
authors.forename: Henrique Ballalai
authors.initials: HB
authors.lastname: Ferraz
authors.affiliation: Universidade Federal de São Paulo, Escola Paulista de Medicina, Disciplina de Neurologia, Setor de Distúrbios do Movimento, São Paulo SP, Brasil.
authors.forename: Carolina Candeias da
authors.initials: CC
authors.lastname: Silva
mesh_terms: D042241:Early Diagnosis; D006801:Humans; D000068079:Motor Disorders / Q000175:diagnosis; D010300:Parkinson Disease / Q000150:complications / Q000175:diagnosis*; D063189:Symptom Assessment