alaa wissam, Abdhussain S. Effect of constant stretching exercises in improving the elasticity of cervical vertebrae for patients with cervical spondylitis’s for ages (40-50) years. ms [Internet]. 2022 Mar. 30 [cited 2024 May 3];21(1):0075. Available from: https://jcopew.uobaghdad.edu.iq/index.php/sport/article/view/866