Changes and significance of serum Copeptin and MMP-9 in children with chronic heart failure 
 PANG Chunyu, WU Xueli, REN Liying, WANG Xusong, HONG Li
临床儿科杂志 . 2018, (6): 432 .  DOI: 10.3969/j.issn.1000-3606.2018.06.008