Myorelaxant Effects of the Essential Oil of Croton nepetaefolius on the Contractile Activity of the Guinea-Pig Tracheal Smooth Muscle - Magalhães, Pedro Jorge Caldas; Lahlou, Saad; Vasconcelos dos Santos, Márcia Andréa; Pradines, Tatiana Leite; Leal-Cardoso, José Henrique (Planta Medica, 2003)