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                4. Minghao Lin, Naiyan Gan, Jun Chen, Kai Lv, Shengfu Han, Huazhen Huan Department of Cardiac Surgery, Yulin First People’s Hospital, Yulin, China Contributions: (I) Conception and design: All authors; (II) Administrative support: N Gan; (III) Provision of study materials or patients: All authors; (IV)...

                  Heart Valve Replacement
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                  Beijing Balance Medical Technology Co.,Ltd., established in March 2001, is engaged in high-end cardiovascular disease implanted devices and surgical soft tissue repair material design, research and development, manufacturing, sales and technical services for the integration of high-tech enterprises.

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