Effect of atenolol pre-treatment in heart damage in a model of intestinal ischemia-reperfusion. - Okada M; Falcão LFR; Ferez D; Martins JL; Errante PR; Rodrigues FSM; Caricati-Neto A; Marinho M; Fenelon G; Oliveira-Júnior IS (Acta cirurgica brasileira, 2017)