Cite
MLA Citation
Steven Haddy. “Letter by Haddy Regarding Article, "Invasive and Echocardiographic Characteristics of a Patient With Severe Pulmonary Valve Regurgitation Pretending Severe Pulmonary Stenosis".” Circulation, vol. 14, 2021, p. . http://access.bl.uk/ark:/81055/vdc_100142325826.0x000009