Impact of Plasma Donepezil Concentration on Behavioral and Psychological Symptoms of Dementia in Patients with Alzheimer’s Disease oleh Yoshiyuki Kagawa, Yoshiaki Yamamoto, Ayami Ueno, Kengo Inomata, Mayu Tezuka, Takashi Osawa, Yasuharu Yazawa, Toshio Maeda, Tomokazu Obi