[Retracted] Magnetic Resonance Imaging Characteristic Evaluation of Dexmedetomidine on Neurocognitive Dysfunction in Elderly Patients with Colorectal Tumors after Laparoscopic Operation

Figure 3

Comparison of operation data between the two groups: (a) operation time; (b) infusion volume; (c) urine volume.

(a)

(b)

(c)