ACKNOWLEDGEMENTS
The present study was supported by the National Natural Science Foundation of China (No. 81970864), the Chongqing Health and Family Planning Commission Research Project (2015HBRC004) and the Chongqing Middle and Youth Medical High-end Talent Studio Project (Yu Wei (2018) No. 2). We thank the Laboratory Research Center of the First Affiliated Hospital of Chongqing Medical University for technical supports.
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