2020. Comparative Evaluation of the Prevalence of Dental Caries, Apical Periodontitis and Periapical Abscess in a Population of North Lucknow, Uttar Pradesh, India. Indian Journal of Public Health Research & Development. 11, 12 (Nov. 2020), 16–21. DOI:https://doi.org/10.37506/ijphrd.v11i12.13209.