Text and Data Mining valid from 2018-11-26
Received: 7 September 2018
Accepted: 6 November 2018
First Online: 26 November 2018
Ethics approval and consent to participate
: We obtained the patient’s consent and ethics approval by the Keio University School of Medicine Ethics Committee: Reference number: 20140242.
: We obtained consent from the patient.
: The authors declare that they have no competing interests.
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