Text and Data Mining valid from 2018-07-11
Received: 2 June 2017
Accepted: 3 July 2018
First Online: 11 July 2018
Ethics approval and consent to participate
: This study was approved by ethical committee of Affiliated Hospital of Nantong University and in accordance with the Declaration of Helsinki.
: All consents to publish from the patients who took part in this study were obtained.
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