The order of contributing authors should have appears as:
Farnaz Torabian1, Zahra Mostafavian2, Sahar Ghareh*3, Mohammad Sarafraz Yazdi4, Mahmood Reza Khazaei5.
1. Medical Student, Faculty of Medicine, Islamic Azad University, Mashhad Branch, Mashhad, Iran.
2. Department of Community Medicine, Mashhad Branch, Islamic Azad University, Mashhad, Iran.
3. Department of Internal Medicine, Mashhad Branch, Islamic Azad University, Mashhad, Iran.
4. Department of Internal Medicine, Mashhad Branch, Islamic Azad University, Mashhad, Iran.
5. Department of Peadiatrics, Mashhad Medical Sciences Branch, Islamic Azad University, Mashhad, Iran.
The authors would like to apologise for any inconvenience caused.
