Text and Data Mining valid from 2018-09-17
Received: 17 August 2018
Accepted: 11 September 2018
First Online: 17 September 2018
Ethics approval and consent to participate
: The study conformed to the “Declaration of Helsinki for Medical Research involving Human Subjects”. Additionally, approval was obtained from the institutional review board at Kaohsiung Veterans General Hospital, with the identifier VGHKS18-CT6–09. The study was performed in accordance with approved guidelines.
: Not applicable.
: The authors declare that they have no competing interests.
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