Research Article
[Retracted] Effect of Autoimmune Cell Therapy on Immune Cell Content in Patients with COPD: A Randomized Controlled Trial
Figure 8
Proportion of NK cells in the peripheral blood serum (%). The serum of NK 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.