@article{articleadf1c3d1,
title   = {Cardiac shock wave therapy improves myocardial perfusion and preserves left ventricular mechanics in patients with refractory angina: a study with speckle tracking echocardiography},
author = {Duque, Anderson S and Cesar, Luis Antonio Machado},
year = {2018},
doi = {10.1111/echo.14054},
journal   = {Echocardiography-a journal of cardiovascular ultrasound and allied techniques}
}