Hasanpour Heidari, R., S.-S. Naemi, F. Okhovatian, B. Nadimi, L. Rahnama, B. Lahouti, M. Niajallili, A. Akbarzadeh Baghban, and A. Rezasoltani. “An Ultrasonographic Investigation of Craniocervical Extensor Muscles in Patients With Chronic Non-Specific Neck Pain”. Journal of Clinical Physiotherapy Research, vol. 3, no. 3, Nov. 2018, pp. 100-4, doi:10.22037/jcpr.v3i3.21445.