Neeraja, M., V. Raut, S. Kharbuli, E. P. Pisal, G. Santhi, and A. Choudhary. “Periodontium in Pregnancy: A Systematic Review”. International Journal of Health Sciences, vol. 6, no. S4, July 2022, pp. 8270-9, doi:10.53730/ijhs.v6nS4.10511.