Utsumi, T., Yoshiike, T., Aritake-Okada, S., Nagao, K., Kawamura, A., Fushimi, M., Matsui, K., Kuriyama, K. (2026). Both underestimation and overestimation of sleep duration predict mortality in older men with sleep disturbances. Scientific Reports. https://doi.org/10.1038/s41598-026-60004-z