A clinical observation on modified Sijunzi decoction for heart failure with reduced ejection fraction of Qi deficiency and blood stasis syndrome 
ZHANG Kaitai, DING Minggang, ZHOU Jingxiang, FANG Chongtao, ZHANG Tingting.
The Journal of Practical Medicine . 2023, (15): 1982 -1986 .  DOI: 10.3969/j.issn.1006-5725.2023.15.021