Longitudinal changes in cognitive function and its related factors in older type 1 diabetes mellitus patients without dementia. - Nagasawa, Kaoru; Matsumura, Kimio; Uchida, Takayasu; Suzuki, Yuya; Nishimura, Akihiro; Igeta, Yukifusa; Sakurai, Takashi; Mori, Yasumichi (Journal of Diabetes Investigation, 2025)