A prospective study of patients with refractory angina: outcomes and the role of high-sensitivity troponin T - Poppi, Nilson T.; Gowdak, Luís H. W.; Dourado, Luciana O. C.; Adam, Eduardo L.; Leite, Thiago N. P.; Mioto, Bruno M.; Krieger, José E.; César, Luiz A. M.; Pereira, Alexandre C. (Clinical Cardiology, 2017)