Development and evaluation of a health-related quality of life questionnaire for the elderly with dementia in Japan. - Terada,S.; Ishizu,H.; Fujisawa,Y.; Fujita,D.; Yokota,O.; Nakashima,H.; Haraguchi,T.; Ishihara,T.; Yamamoto,S.; Sasaki,K.; Nakashima,Y.; Kuroda,S. (Int J Geriatr Psychiatry, 2002)