Akbarzadeh, M., A. Amiri, M. Dadgoo, and H. Mohsenifar. “Effect of Duration of Smartphone Use on Cervical Repositioning Error in Forward Head Posture and Normal Posture”. Journal of Clinical Physiotherapy Research, vol. 4, no. 1, Jan. 2019, p. e3, doi:10.22037/jcpr.v4i1.24149.