Effects of croton zehntneri aqueous extracts on some cholinergic and dopaminergic-related behaviours of laboratory rodents - Giorgi, R; Batatinha, Maria José Moreira; Bernardi, Maria Martha; Spinosa, Helenice de Souza; Spinosa, Flávio Roberto Nunes; Palermo-Neto, João (Journal of Ethnopharmacology, 1991)