![Which of the following is true regarding EGFR mutations?](https://www.gkseries.com/blog/wp-content/uploads/2022/01/Which-of-the-following-is-true-regarding-EGFR-mutations.png)
Q. Which of the following is true regarding EGFR mutations?
A. found in 20% of NSCLC patients in the western world
B. found in 50% of patients of NSCLC in East Asia
C. Anti-PD-1 / PD-L1 therapies are not used in these patients
D. all of the above
Answer: all of the above