“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, vol. 11, no. 12, Nov. 2020, pp. 16-21, https://doi.org/10.37506/ijphrd.v11i12.13209.