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Echocardiography across all groups: (a) control group, (b) DOX group, (c) DOX + SMI group, (d) EF and FS, (e) LVIDs and LVIDd, (f) LVESV and LVEDV, (g) LVAWs and LVAWd, and (h) LVPWs and LVPWd. At the end of follow-up duration, there were 20 survivals in control group, 11 in DOX group, and 16 in DOX + SMI group, respectively. Compared to control group, * P < 0.05; compared to DOX group, # P < 0.05.
