1. AAA 2016 https://www.anatomy.org/directories.html
2. AAMC 2017a https://students-residents.aamc.org/applying-medical-school/article/changing-mcat-exam
3. AAMC 2017b https://www.aamc.org/members/gea
4. Neurophobia among medical students;Abulaban;Neurosciences (Riyadh),2015
5. ABP 2015 http://www.abpath.org/index.php/taking-an-examination/subspecialty-certificate-examinations