(Q52429450)
Statements
Comparison of high pulse repetition frequency and continuous wave Doppler echocardiography for velocity measurement and gradient prediction in children with valvular and congenital heart disease. (English)
A R Snider
J G Stevenson
J W French
A P Rocchini
M Dick
A Rosenthal
D C Crowley
R H Beekman
J Peters
1 April 1986
7
4
873-879