Boldine, an Alkaloid from Peumus boldus Molina, Induces Endothelium-Dependent Vasodilation in the Perfused Rat Kidney: Involvement of Nitric Oxide and Small-Conductance Ca2+-Activated K+ Channel - de Souza, P; da Silva, RC V; da Silva, L M (Evid Based Complement Alternat Med, 2022)