Head-to-head comparison of dipyridamole, dobutamine and pacing stress echocardiography for the detection of myocardial ischemia in an animal model of coronary artery stenosis - Schmidt, André; Almeida Filho, O. C.; Ayres-Neto, E. M.; Carneiro, João José; Marin-Neto, José Antônio; Maciel, Benedito Carlos (Brazilian Journal of Medical and Biological Research, 2001)