Dyslexia with and without Irlen syndrome: A study of influence on abilities and brain‐derived neurotrophic factor level oleh Ehab R. Abdelraouf, Ayman Kilany, Mohamed E. Elhadidy, Hala M. Zeidan, Amal Elsaied, Ola M. Eid, Mostafa M. El‐Saied, Rasha Anwar, Neveen H. Nashaat