1. Report on Social Welfare Administration and Services [Eisei gyōsei hōkokurei]. Ministry of Health, Labour and Welfare [in Japanese]. 2023. Accessed March 14, 2023. https://www.e-stat.go.jp/stat-search/files?tclass=000001200247&cycle=8
2. History of recent child abuse prevention measures [Saikin no jidō gyakutai bōshi taisaku no keii]. Ministry of Health, Labour and Welfare website [in Japanese]. 2019. Accessed March 14, 2023. https://www.mhlw.go.jp/content/11920000/000468993.pdf
3. Healthy Parents and Children 21 [Sukoyaka oyako 21]. Ministry of Health, Labour and Welfare website [in Japanese]. 2015. Accessed March 14, 2023. https://sukoyaka21.mhlw.go.jp/
4. Cochrane Review: Behavioural and cognitive-behavioural group-based parenting programmes for early-onset conduct problems in children aged 3 to 12 years (Review)