S. A. Ahasan, A. I. Hasan, A. I. Hasan, S. Maruffuzaman, and M. Bari, “Outcome of cases of Mitral Stenosis after Percutenuous Transvenous Mitral Commissurotomy (PTMC)”, Nepalese Heart J., vol. 3, no. 3, p. 25, Dec. 2004.