Study on symptom clusters and their influence on the quality of life in elderly patients with coronary heart disease complicated with heart failure
WANG Li-xia, WANG Lin-juan, CUI Jing, MENG Bei, DONG Jing
South China Journal of Preventive Medicine . 2022, (12): 1478 -1482 .  DOI: 10.12183/j.scjpm.2022.1478