Association between proton pump inhibitors after percutaneous coronary intervention and risk of gastric cancer by Ka-Shing Cheung, Chung-Wah Siu, Andrew Kei-Yan Ng, Pauline Yeung Ng, April Ip

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Directional movement guide for digital single-operator cholangioscopy system by Weigang Gu, MD, Justin Ryan L. Tan, MD, Hangbin Jin, MD, Qifeng Lou, RN, Chuang Tang, RN, Ka Shing Cheung, MD, Jianfeng Yang, MD, Xiaofeng Zhang, MD

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Risk of mortality between warfarin and direct oral anticoagulants: population-based cohort studies by Zixuan Wang, Julian Matthewman, John Tazare, Qiuyan Yu, Ka Shing Cheung, Celine S. L. Chui, Esther W. Y. Chan, Krishnan Bhaskaran, Liam Smeeth, Ian C. K. Wong, Ian J. Douglas, Angel Y. S. Wong

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