Muhsin JM, Jawad AK. A Cross Sectional Study of Knowledge and attitudes levels about Polio Vaccination among selected sample of Technical Institute \ AL-Suwaira staff members. djm [Internet]. 2019 Mar. 28 [cited 2025 Sep. 12];16(1):37-49. Available from: https://djm.uodiyala.edu.iq/index.php/djm/article/view/199