A. D. Hoang, N. T. D. Nguyen, N. P. G. Doan, and B. T. Tran, “Knowledge, attitude and practice regarding tooth brush maintenance toward COVID-19 prevention among students at Hue University of Medicine and Pharmacy, Hue University”, HUEJMP, vol. 13, no. 5, pp. 201–209, Sep. 2023.