Text and Data Mining valid from 2018-03-14
Received: 19 November 2017
Accepted: 13 February 2018
First Online: 14 March 2018
: S.N. and E.K. are present members of Committee of Renal Data Registry of JSDT, and K.W. was a previous member of this committee.
: The present survey was approved by the medicine ethics committee of JSDT (approval number is 2) and was exempt from the need for informed consent. The study was performed in accordance with the relevant guidelines of the Declaration of Helsinki.
: Not applicable
: The authors declare that they have no competing interests.
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