Intravascular ultrasonic characteristics and vasoreactivity of the pulmonary vasculature in children with pulmonary hypertension.
Ivy DD, Neish SR, Knudson OA, Nihill MR, Schaffer MS, Tyson RW, Abman SH, Shaffer EM, Valdes-Cruz L. Intravascular ultrasonic characteristics and vasoreactivity of the pulmonary vasculature in children with pulmonary hypertension. Am J Cardiol. 1998 Mar 15; 81(6):740-8.