Ventricular tachycardia in chagas disease: a comparison of clinical, angiographic, electrophysiologic and myocardial perfusion disturbances between patients presenting with either sustained or nonsustained forms - Sarabanda, Álvaro Valentin Lima; Sosa, Eduardo Argentino; Simões, Marcus Vinícius; Figueiredo, Geraldo Luís de; Pintya, Antônio Osvaldo; Marin-Neto, José Antônio (International Journal of Cardiology, 2004)