AGARWAL, S LARORA, R BDANDIYA, P CSINGH, K P1956-10-012009-05-271956-10-012009-05-271956-10-01AGARWAL SL, ARORA RB, DANDIYA PC, SINGH KP. A study on the chemical structure of cinchona alkaloids and cupreines responsible for its negative inotropic action in isolated amphibian and mammalian hearts. Indian Journal of Medical Research. 1956 Oct; 44(4): 645-8http://imsear.searo.who.int/handle/123456789/18123engHeart --drug effectsA study on the chemical structure of cinchona alkaloids and cupreines responsible for its negative inotropic action in isolated amphibian and mammalian hearts.Journal Article