c. ALT ≤ 5 times the upper limit of normal (ULN) and no pathologic jaundice (two consecutive tests with an interval of 2 weeks - 3 months).
d. Parents are willing to participate in the study and sign an informed consent form, for children without parents, all legal guardians of need to give informed consent.
You may not be if
a. Combined viral infections such as HAV, HCV, HDV, HEV, HIV, EBV, CMV, etc;
b. Combination of other liver diseases, such as autoimmune hepatitis, drug-induced liver injury, Wilson's disease;
c. WBC \<9 × 10\^9/L, or PLT \<90 × 10\^9/L;
d. Combination of other systemic serious diseases or hereditary diseases, etc;
e. Other conditions deemed by the investigator to be unsuitable for participation in this study.
