Funding for this research was provided by:
Japan Society for the Promotion of Science (19H03870)
Received: 12 March 2020
Accepted: 11 September 2020
First Online: 17 September 2020
Ethics approval and consent to participate
: This study was approved by the Ethics Committee of Kyoto University (R0817). Informed consent from the study participants was waived by the Ethics Committee of Kyoto University, as this was an observational study analysing anonymous, routinely collected data.
: Not applicable.
: All authors have completed the ICMJE uniform disclosure form at ExternalRef removed and declare: all authors had financial support from the Japan Society for the Promotion of Science for the submitted work; no financial relationships with any organisations that might have an interest in the submitted work in the previous 3 years; no other relationships or activities that could appear to have influenced the submitted work.