Article Title,Year,Volume,Issue,Page Range,Author Intracoronary and aortic root myocardial contrast echocardiography: the effect of route dose and pharmacologic coronary vasodilation,1995,8,5 Pt 1,719-727,Collins Two-dimensional and color Doppler echocardiographic diagnosis of penetrating missile wounds of the heart: chronic complications from intracardiac course of a bullet,1992,5,1,81-84,Xie