Research Article

[Retracted] Effect of Enteral and Parenteral Nutrition Support on Pulmonary Function in Elderly Patients with Chronic Obstructive Pulmonary Disease Complicated by Respiratory Failure

Figure 4

Comparison of oxidative stress response before and after nutritional support in three groups. (a) Changes in SOD before and after nutritional support in three groups. (b) Changes in MDA before and after nutritional support in three groups. Comparison with the same group before treatment ; #comparison with group A after the treatment (); &comparison with group B after the treatment ().
(a)
(b)