Could cyclophosphamide exert a protective role avoiding esophagic neuron loss in Calomys callosus infected with Trypanosoma cruzi ? - Caetano, Leony Cristina; Zucoloto, Sérgio; Kawasse, Laura Midori; Toldo, Miriam Paula Alonso; Prado Júnior, José Clóvis do (Digestive Diseases and Sciences, 2008)