Braz J Anesthesiol, vol.31, 1981Calcium and ketamine correlations with lhe contractile state of myocardiumGomes O.M., Dallan L.A.O., Ledoux D., Sales D.D.F., Blas J.A., Calonge H.C.F., Fiorelli A.I., Amaral R.V.G., Bittencourt D., Macruz R., Pillegi F., Armelin E., Zerbini E.J.Scientific Article