IJSR International Journal of Scientific Research 2277 - 8179 Indian Society for Health and Advanced Research ijsr-10-12-38546 Original Research Paper EVALUATION OF IMMUNIZATION COVERAGE AMONG THE CHILDREN AGED 12 - 23 MONTHS IN URBAN AREA OF PATNA CITY Jay Jyoti Dr. Dr. Sunita Kumari Dr. December 2021 10 12 01 02