Guo, Heng, Chi Xu, and Jiying Chen. “Risk Factors for Periprosthetic Joint Infection After Primary Artificial Hip and Knee Joint Replacements”. The Journal of Infection in Developing Countries 14, no. 06 (June 30, 2020): 565-571. Accessed August 5, 2020. https://jidc.org/index.php/journal/article/view/32683346.