Differential effects of frailty on biventricular function and prognosis analysis in senile patients https://www.medrxiv.org/content/10.1101/2023.02.27.23286544
Differential effects of frailty on biventricular function and prognosis analysis in senile patients https://www.medrxiv.org/content/10.1101/2023.02.27.23286544