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1 A Hidden Pressure Gradient That can be Easily Passed Over in Prosthetic Mitral Valve
Se Jung Yoon, Eui Young Choi, Sung Ai Kim, Chi Young Shim, Jong Won Ha, Se Joong Rim, Namsik Chung
J Cardiovasc Ultrasound.2007;15(4):140-141.   Published online 2017 December 31     DOI: http://dx.doi.org/10.4250/jcu.2007.15.4.140
   

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