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The study protocol was approved by the ethics committee of Fukushima Medical University (approval number 29118). Written informed consent was obtained from participants recruited between January 2018 and December 2019 in the Department of Diabetes, Endocrinology, and Metabolism, Fukushima Medical University Hospital. This study was conducted following the Ethical Guidelines for Medical and Health Research Involving Human Subjects of the MHLW of Japan.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Conflict of interests"}}]}}