Arsyad J, Arsyad F, Lubis C, Siregar H. Children’s Immunization Status and Family Size of Doctor’S FaMilies in Dr. Pirngadi Haspital Medan. PI [Internet]. 25Apr.2019 [cited 20Apr.2024];25(5-6):93-. Available from: https://paediatricaindonesiana.org/index.php/paediatrica-indonesiana/article/view/2190