Language deterioration in four japanese-portuguese bilingual patients with Alzheimer's disease: a trans-cultural study of japanese elderly immigrants in Brazil - Meguro, Kenichi; Senaha, Mirna L. H.; Caramelli, Paulo; Ishizaki, Junichi; Chubacci, Rosa Y. S.; Meguro, Mitsue; Ambo, Hideo; Nitrini, R.; Yamadori, Atsushi (Psychogeriatrics, 2003)