Plasma vitamin C levels are associated with brain structural networks on MRI: A large cohort study - Haruka Nagaya; Keita Watanabe; Tomohiro Shintaku; Miho Sasaki; Jusei Kudo; Sera Kasai; Yuka Ishimoto; Kana Saito; Shuichi Matsuhashi; Taiki Koshiishi; Mizuki Imura; Amo Ozawa; et al. (PLoS ONE, 2026)