Xiaoqun, D., L. Xiaoli, L. Jun, and X. Yang. “The Correlation Between Infections by Human Papillomavirus Types 6/11 and 16/18 and Mammary Gland Hyperplasia With Glandular Thickening”. Cellular and Molecular Biology, vol. 65, no. 5, June 2019, pp. 49-53, doi:10.14715/cmb/2019.65.5.8.