Cardioangiographic studies of the mitral and aortic valves.
D000790:Angiocardiography; D001021:Aortic Valve / Q000000981:diagnostic imaging*; D006801:Humans; D008943:Mitral Valve / Q000000981:diagnostic imaging*
ANGIOCARDIOGRAPHY; AORTIC VALVE/radiography; MITRAL VALVE/radiography