[1] Univ Bologna, Dept Expt Pathol, I-40126 Bologna, Italy
[2] Univ Bologna, Dept Expt & Evolutionary Biol, Bologna, Italy
[3] Univ Modena & Reggio Emilia, Dept Forens Med, Modena, Italy
[4] CIAFIC, Buenos Aires, DF, Argentina
[5] UBA, Ctr Univ Interdisciplinario Estudio Enfermedad Ch, Buenos Aires, DF, Argentina
[6] Serv Nacl Chagas, Cordoba, Argentina
[7] Univ Nacl Cordoba, RA-5000 Cordoba, Argentina
[8] Univ Bologna, Dept Hist Disciplines, Bologna, Italy