Funding for this research was provided by:
the Kawano Masanori Memorial Foundation for the Promotion of Pediatrics
Text and Data Mining valid from 2018-04-06
Received: 1 November 2016
Accepted: 15 March 2018
First Online: 6 April 2018
Ethics approval and consent to participate
: This study complies with the Declaration of Helsinki, and was approved by the Ethics Committee of Tokyo Women’s Medical University. The written informed consents from each participate are not required for this study. To let the patients notice this study, we have put an announcement on our web site: ExternalRef removed since September 2016.
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