Fei, Wenliang, Tingting Xiao, Xiaofan Li, and Feng Yang. 2023. “Knowledge about Hepatitis B and Influencing Factors Among the Residents in Qingdao: A Cross-Sectional Study”. The Journal of Infection in Developing Countries 17 (07):1030-36. https://doi.org/10.3855/jidc.17501.