1. Percutaneous catheter commissurotomy in rheumatic mitral stenosis;Lock, J.E.; Khalilullah, M.; Shrivastava, S.; Bahl, V.; Keane, J.F.;NEngljMed,1985
2. Percutaneous double-balloon mitral valvotomy for rheumatic mitral valve stenosis;M, Al Zaibag; PA, Ribeiro; S, Al Kasab; MR, Al Fagih;Lancet,1986
3. Balloon dilatation of the mitral valve by a single bifoil;Patel, J.; Vythimlgum, S.; Mithra, A.S.;BrHeartJ; or trefoil (3 x 15 mm) catheter,1990
4. Percutaneous mitral valvuloplasty: retrograde, transarterial double-balloon technique utilising the transseptal approach;Babic, U.U.; Dorros, G.; Pejcic, P.;Cathet Cardiovasc Diagn,1988
5. Retrograde nontransseptal balloon mitral valvuloplasty: immediate results and long-term followup;Stephandis, C.; Stratos, C.; Pitsavos, C.;Circulation,1992