Acute but not chronic metabolic acidosis potentiates the acetylcholine-induced reduction in blood pressure: an endothelium-dependent effect - Celloto, A. C.; Ferreira, L. G.; Capellini, V. K.; Albuquerque, A. A. S.; Rodrigues, Alfredo José; Evora, Paulo Roberto Barbosa (Brazilian Journal of Medical and Biological Research, 2016)