Combination Treatments of Plasma Exchange and Umbilical Cord-Derived Mesenchymal Stem Cell Transplantation for Patients with Hepatitis B Virus-Related Acute-on-Chronic Liver Failure: A Clinical Trial in China

Figure 2

The Kaplan-Meier survival function among four treatment groups to unfavorable outcomes (a) and overall survival (b).

(a)

(b)