Funding for this research was provided by:
Japan Society for the Promotion of Science (JP15K16518)
Article History
Received: 24 September 2019
Revised: 16 November 2019
Accepted: 4 December 2019
First Online: 30 December 2019
Compliance with ethical standards
: The study was approved by the local institutional review board (No. 57, January 26, 2017) and by the Research Ethics Committee of Fukushima Medical University School of Medicine (No. 2850, September 28, 2016). All patients provided written informed consent prior to participation.
: None.