Right Ventricular Tissue Doppler Myocardial Performance Index in Children with Pulmonary Hypertension: Relation to Invasive Hemodynamics.
Friesen RM, Sch?fer M, Burkett DA, Cassidy CJ, Ivy DD, Jone PN. Right Ventricular Tissue Doppler Myocardial Performance Index in Children with Pulmonary Hypertension: Relation to Invasive Hemodynamics. Pediatr Cardiol. 2018 Jan; 39(1):98-104.