Tefera M, Sharma M. Determinants of Immunization Among Children Aged 12-23 Months in Ethiopia: A Proportional Odds Model Approach. ijsmr [Internet]. 2015 Feb. 13 [cited 2025 Jul. 27];4(1):140-55. Available from: http://mail.lifescienceglobal.com/pms/index.php/ijsmr/article/view/2746