Text and Data Mining valid from 2018-06-08
First Online: 8 June 2018
Compliance with Ethical Standards
: The National Cerebral and Cardiovascular Center (principal investigator Eisuke Tatsumi) and Nipro Corp. (Osaka, Japan) have a joint research agreement. The funders had no role in the study design, data collection and analysis, interpretation of results, manuscript preparation, or decision to publish.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from all individual participants included in the study.