1. Physicians Working Group. Cardiological intervention in elderly patients;of, Royal College;JR Coil Physicians Lond,1991
2. Early and late results after isolated coronary artery bypass surgery in 159 patients aged 80 years and older;Mullany, C.J.; Darling, G.E.; Pluth, JR, Orszulak; TA, Schaff; HV, Ilistrup; D.M.;Circulation,1990
3. Influence of age on results of coronary artery surgery;Weintraub, W.S.; Craver, J.M.; Cohen, C.L.; Jones, E.L.; Guyton, R.A.;Circulation,1991
4. Spontaneous course of aortic valve disease;Eur Heartj,1987
5. Natural history of candidates for balloon aortic valvuloplasty,1987