Research Article

[Retracted] Effect of Autoimmune Cell Therapy on Immune Cell Content in Patients with COPD: A Randomized Controlled Trial

Figure 4

Proportion of CD4+ cells in the peripheral blood serum (%). The serum of CD4+ cell content in the peripheral blood of the treatment group at 30 days and 90 days after treatment was determined. Note: vs. the control group; vs. in the same group before treatment.