M. B. Mia, M. R. Karim, N. Hossain, M. J. Haque, T. A. Chowdhury, and S. Hoque, “Mitral annular calcification: A marker of severe coronary artery disease in patients under 60 years old”, Med. res. chronicles, vol. 9, no. 6, pp. 496-504, Nov. 2022.