Packer M,Bristow MR,Cohn JN,et al.The effect of carvedilol on morbidity and mortality in patients with chronic heart failure[ J].N Engl J Med,1996 ;334 (21):1349-55.是什么意思_Packer M,Bristow MR,Cohn JN,et al.The effect of carvedilol on morbidity and mortality in patients with chronic heart failure[ J].N Engl J Med,1996 ;334 (21):1349-55.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句