Association between mammillary body atrophy and memory impairment in retired athletes with a history of repetitive mild traumatic brain injury

Mari Miyata, Keisuke Takahata, Yasunori Sano, Yasuharu Yamamoto, Shin Kurose, Manabu Kubota, Hironobu Endo, Kiwamu Matsuoka, Kenji Tagai, Masaki Oya, Kosei Hirata, Fumie Saito, Masaru Mimura, Koji Kamagata, Shigeki Aoki, Makoto Higuchi