Sukandar, E. Y.; Ridwan, A.; Sukmawan, Y. P. VASODILATATION EFFECT OF ETHANOLIC EXTRACT OF ANREDERA CORDIFOLIA, SONCHUS ARVENSIS L, AND URSOLIC ACID ON ISOLATED RABBIT AORTIC AND FROG HEART. Int J Pharm Pharm Sci 2016, 8, 145-149.