Pimaradienoic acid inhibits vascular contraction and induces hypotension in normotensive rats - Tirapelli, Carlos Renato; Neto, Mario dos Anjos; Bonaventura, Daniella; Melo, Miriam Cristina Contin de; Ambrosio, Sérgio R.; Oliveira, Ana Maria de; Bendhack, Lusiane Maria; Costa, Fernando Batista da (Journal of Pharmacy and Pharmacology, 2008)