Karim, T.; Hussain, M. Z.; Islam, M. T.; Alam, S.; Baruea, C.; Bhuiyan, M. M. R.; Bhadra, S. Patent Ductus Arteriosus Size Estimation by Echocardiography and Angiography: A Comparative Study: PDA Size Estimation. Bangladesh Med Res Counc Bull 2019, 45, 11-16.