Rahayu, A., B. Murtala, S. Asriyani, A. A. Zainuddin, Muzakkir, and N. Latied. “Comparison of Cardiac Size in Posteroanterior Chest X-Ray and Echocardiography”. Majalah Kedokteran Sriwijaya, vol. 51, no. 4, Oct. 2019, pp. 193-8, doi:10.36706/mks.v51i4.10238.