1. Indications for closedor openheart surgery for mitral stenosis;Ankeney, J.L.;Annals of Thoracic Surgery,1967
2. Mitral valvotomy in the valve replacement era;Bryant, L.R.; Trinkle, J.K.;Annals of Surgery,1971
3. Closed valvuloplasty for mitral stenosis;Ellis, L.B.; Harken, D.E.;New England Journal of Medicine,1964
4. Fifteen to twenty year study of one thousand patients undergoing closed mitral valvuloplasty;Ellis, L.B.; Singh, J.B.; Morales, D.D.; Harken, D.E.;Circulation,1973
5. Closed mitral valvotomy;Fraser, K.; Tumer, M.A.; Sugden, B.A.;British Medical Journal,1976