A study on smoking and secondhand smoke exposure among people at high risk of chronic diseasesFang ZHOU, Qing-Qing JIANG, Tian-Tian WANG, Shi-Yi CAO243-248
Analysis of the burden of gastrointestinal diseases between 1990 and 2017 in ChinaLu-Yao LI, Zhong-Li ZHENG, Xin-Li GAN, Xing-Pei GUO, Hao ZI, Zhi-Yuan JIAN, Xue-Qun REN, Xian-Tao ZENG249-256
Research on the application and development trend of blockchain technology to patents in the field of medical and health informationJi-Bin XIN, Li-Jun WU, Xin YANG, Man WANG257-265
Evidence-based clinical practice guideline for chemoprophylaxis, diagnosis, treatments, and discharge management of COVID-19: an evidence evaluation (2)Yong-Bo WANG, Li-Sha LUO, Li-Ye LU, Jia-Ao LOU, Ying-Hui JIN266-278
Progress in the development of ovarian cancer organoids and their application in drug testingDong CHEN, Yan-Fang SHI, Yu-Chen LIU279-284
Recent advances in the application of patient-derived tumor xenograft models in prostate cancerJian-Li DUAN, Zheng CHEN, Yu-Zhuo WANG285-293
The progress of research into the role of D-lactic acid in the diagnosis of periprosthetic joint infectionZhi-Zhuo LI, Li-Jun SHI, Wei SUN294-298
A literature review and case report of severe hepatitis caused by the G6PD gene c.1478G>A mutationJian LIU, Yan-Jun WANG, Shun-Jun XIONG, Bing-Yan HE, You-Ping DENG, Dong-Chi ZHAO307-310
Four cases of transcatheter aortic valve implatationYin-Xia HUANG, Min LI, Xin-Hao CHEN, Xing-You LIU, Ji-Gang HE311-315