Text and Data Mining valid from 2019-07-03
Received: 28 September 2018
Accepted: 15 May 2019
First Online: 3 July 2019
Ethics approval and consent to participate
: This retrospective study was approved by Institutional Review Board (Ethics Committee, St. Marianna University School of Medicine) in accordance with the Japanese Ethical Guidelines for Medical and Health Research Involving Human Subjects. Written informed consent was obtained from all patients before treatment initiation.
: Not applicable.
: The authors declare that they have no competing interests.
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