Analysis of Na+ concentration patterns in trophectoderm cells of mouse blastocysts using a dual-wavelength electrolyte indicator - Ayaka Fujishima; Kazumasa Takahashi; Mayumi Goto; Akiko Fujishima; Takeo Hirakawa; Takuya Iwasawa; Hiromitsu Shirasawa; Yukiyo Kumazawa; Yukihiro Terada (PLoS ONE, 2025)