1. 1. Ministry of Health Labour and Welfare. Kongo no seishin hoken iryou fukushi no arikata ni kansuru kentoukai (dai 18 kai) [18th Conference for examining the future of mental health care and welfare], Reference 1: Seishinka dei kea tou ni tsuite [On psychiatric day care] http://www.mhlw.go.jp/shingi/2009/06/s0604-7.html, accessed on October 29, 2010 (in Japanese).
2. 2. Alberti R , Emmons M . Your perfect right: Assertiveness and equality in your life and relationships. 9th ed. Impact Publishers-Atascadero, CA, 1970. Sugawara Kenji, translated by Junko Jarrett. Jiko-shucho toreningu [Self-assertiveness training], Tokyo Tosho, 2014; 2–13 (in Japanese).
3. 3. Suzuki E , Kanoya Y , Ishida S , et al. The development of the Japanese Version of the Rathus assertiveness schedule. Japanese Journal of Human Sciences of Health-Social Services 2004; 10: 19–29 (in Japanese, Abstract in English).
4. 4. Suzuki E , Kanoya Y , Katsuki T , et al. Verification of reliability and validity of a Japanese version of the Rathus Assertiveness Schedule. J Nurs Manag 2007; 15: 530–537.
5. 5. Suzuki E , Saito M , Azuma T , et al. Verification of Reliability and Validity of the Japanese Version of the Rathus Assertiveness Schedule (J-RAS) among executive nurses. Japanese Journal of Human Sciences of Health-Social Services 2007; 14: 33–41 (in Japanese, Abstract in English).