5Liu LS,Wang JO,Gong LS,et al.Comparison of active tream ent and placebo in older Chinese patients with iso lated systolic hypertension[J].JH ypertens,1998,16(1):18231829.
10Aidan P,Bol ger,Faisal Al-Nasser.Beta blockers for chronic heart failure:surviving longer but feeling better International Journal of Cardiology,2003,92:1-8.
