https://www.taiyokagaku.com/lab/column/11/

https://www.mh-mental.jp/policy/detail/id=154

https://www.nihon-trim.co.jp/media/30283/

https://hc.kowa.co.jp/the-guard-kowa/intestinal-flora/relation/#:~:text=%E8%84%B3%E3%81%A8%E8%85%B8%E3%81%AE%E4%B8%A1%E6%96%B9,%E8%80%83%E3%81%88%E3%81%A6%E3%81%BF%E3%81%BE%E3%81%97%E3%82%87%E3%81%86%E3%80%82

https://www.asahi.com/relife/article/12487397

https://www.michiwaclinic.jp/news/2587/

https://kunichika-naika.com/information/hitori201605