ZOU Chengxiang, LIU Shuangmei, DENG Fangli, CHEN Zhiling, JU Zheng, ZHENG Hong. Clinical value of optimized nursing in treatment of elderly patients with chronic heart failure and its influence on prognosis[J]. Journal of Clinical Medicine in Practice, 2016, (16): 11-13,17. DOI: 10.7619/jcmp.201616004