Savielieva, N. M., Honcharenko, O. V., Schnaider, S. A., & Tkachenko, Y. K. (2019). The effect of estrogen deficiency and its combination with chronic stress on the condition of periodontal in old rats. Zaporozhye Medical Journal, (1). https://doi.org/10.14739/2310-1210.2019.1.155832