1. Bailey CP, Bolton HE, Jamison WL, Nichols HT (1954) Commissurotomy for rheumatic aortic stenosis. Surgery 9: 22
2. Bailey CP, Bolton HE, Nichols HT et al. (1956) The surgical treatment of aortic stenosis. J Thorac Surg 31: 375
3. Bessone LN, Pupello DF, Blank RH et al. (1977) Valve replacement in patients over 70 years. Ann Thorac Surg 24: 417
4. Cribier A, Savin T, Saou N et al. (1986) Percutaneous transluminal valvuloplasty of acquired aortic stenosis in elderly patients: an alternative to valve replacement. Lancet 1: 63
5. Cribier A, Savin T, Saoudi N et al. (1986) Percutaneous balloon valvuloplasty (PBV) in adult aortic stenosis: an alternative to surgery for valve replacement. Circulation 74 (Suppl 2), 365