Influence of steroidal hormones on calomys callous infected with two different strains of trypanosoma cruzi - Prado Júnior, José Clóvis do; Garcia, T A R; Toldo, Miriam Paula Alonso; Albuquerque, Sérgio de; Takeda, J K; Andrade, J F H; Kloetzel, Judith Kardos (Jornada do Instituto de Medicina Tropical, 1993)