S. Houssein , M. ., and F. . Elbraky. “Estimating the Pulmonary Artery Pressure: Transthoracic Echocardiography Vs. Right Heart Catheterization”. Libyan Journal of Public Health Practices, vol. 1, no. 1, July 2024, pp. 35-39, doi:10.37376/ljphp.v1i1.6833.