https://www.jstage.jst.go.jp/article/internalmedicine/advpub/0/advpub_0590-22/_pdf/-char/jahttps://igakkai.kms-igakkai.com/wp/wp-content/uploads/2018/KMJ-J44%282%29151.pdf
http://www.nicovideo.jp/watch/sm41434018
