Cardiovascular Effects of the Essential Oil of Mentha x villosa and its Main Constituent, Piperitenone Oxide, in Normotensive Anaesthetised Rats: Role of the Autonomic Nervous System - Lahlou, Saad; Carneiro-Leão, Ricardo Ferreira Lima; Leal-Cardoso, José Henrique; Toscano, Carla Fabiana (Planta Medica, 2001)