Asres, M., Wachiso, A., Bisrat, F., Tadesse, T., Kidanne, L., Asegdew, B., Asress, A., & Tessema, F. 2019 Oct 31. Immunization service providers’ knowledge, attitude and practice in primary health care units in pastoral and semipastoral areas of Ethiopia: CORE Group Polio Project. Ethiopian Journal of Health Development. [Online] 33:Special