1. 1) Kawabata K,Yoshii Y,Tamizu S, et al: Medical aromatherapy using in the clinical. MEDICUS SHUPPAN, Publisher Co. Ltd, Osaka, 2000 (in Japanese)
2. 2) Watanabe S, Imanishi J: Aromatherapy. Anti-Aging Igaku 5; 375-379: 2009 (in Japanese)
3. 3) Carter A: Aromatherapy in cancer care in the UK. Journal of Japanese Society of Aromatherapy 7; 48-51: 2008
4. 4) Japanese Society of Aromatherapy (ed.): Aromatherapy for nurses. MEDICUS SHUPPAN, Publisher Co. Ltd, Osaka, 2005 (in Japanese)
5. 5) Japanese Society of Aromatherapy (ed.): Principles of aromatherapy. Maruzen, Tokyo, 2008(in Japanese)