Abbreviations: AZA, azathioprine; IFN, interferon.1P-values for AZA vs. IFN comparison were obtained through χ2 test with one degree of freedom for rate comparison, χ2 test with two degrees of freedom
Abbreviations: AZA, azathioprine; IFN, interferon. 1P-values for AZA vs. IFN comparison were obtained through χ2 test with one degree of freedom for rate comparison, χ2 test with two degrees of freedo