Prevalence of Behavioral and Psychological Symptoms in Patients With Cognitive Decline Before and During the COVID-19 Pandemic - Kuroda, Yujiro; Sugimoto, Taiki; Matsumoto, Nanae; Uchida, Kazuaki; Kishino, Yoshinobu; Suemoto, Claudia Kimie; Sakurai, Takashi (Frontiers in psychiatry, 2022)