CD4 and autoimmune thrombocytopenic purpura: In terms of CD4+ subgroup regulation, Li et al. [61] randomly grouped 122 ITP patients, with the adoption of prednisone (10–60 mg/d) combined with Yiqi Ziyin Shengxue Decoction in the treatment, and prednisone (the same dosing) alone in the control group.