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ACKNOWLEDGEMENTS . We acknowledge the support of the Leadership Board of Vietnam National Heart Institute for this study. We appreciate co-researchers to help collect data and patients for their participation.
DATA AVAILABILITY . The data of our research are available from the corresponding author at request.
INTEREST CONFLICT . there is no conflict of interest in this publication.
FUNDING STATEMENT . This study is self-funded. We did not receive any financial support. It was undertaken by the authors involved in this study.