In the article titled “Intraoperative Contrast Enhanced Ultrasound Evaluates the Grade of Glioma” [1], there were errors in the Materials and Methods and Results sections, as mentioned in a Letter to the Editor by Mahalangikar et al. [2], which should be corrected as follows.
In Section 2.7.3 (Expression of VEGF), “41% to 75% was (+)” should be corrected to “41% to 75% was (+ +).”
The age ranges were incorrectly reported in Section 3.1 (The Basic Condition of the Patients) as “20 to 69 years with a mean age of 47.9 ± 11.4” and should be corrected to “18 to 69 years with a mean age of 45 ± 12.8 years.”