D. Daković, M. Lekić, D. Bokonjić, Z. Lazić, T. Čutović, and R. Mladenović, “Evaluation of periodontal status and treatment needs of the Serbian Armed Forces population”, Vojnosanit Pregl, vol. 78, no. 9, Sep. 2021, doi: 10.2298/VSP191125010D.