Ahsan, S. A., S. Marufuzzaman, M. A. Bari, M. Salman, and M. M. Rahman. “Outcome of 153 Cases of Mitral Stenosis After Percutenuous Transvenous Mitral Commissurotomy”. Bangladesh Medical Research Council Bulletin, vol. 34, no. 2, Sept. 2008, pp. 66-68, doi:10.3329/bmrcb.v34i2.1179.