Text and Data Mining valid from 2020-01-13
Received: 27 November 2019
Accepted: 8 January 2020
First Online: 13 January 2020
Compliance with ethical standards
: The authors report no conflicts of interest concerning the materials or methods used in this study or the findings specified in this paper.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional research committee (Brain Attack Center Ota Memorial Hospital institutional review board [approval number 133]) 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.