Sugaya, N. ., Shinjoh, M. ., Nakata, Y. ., Tsunematsu, K. ., Yamaguchi, Y. ., Komiyama, O. ., … Research, G. K. P. I. (2018). Three-season effectiveness of inactivated influenza vaccine in preventing influenza illness and hospitalization in children in Japan, 2013-2016. Vaccine. https://doi.org/10.1016/j.vaccine.2018.01.024 (Original work published 2018)

Yamamoto, S. ., Kawamura, Y. ., Yamamoto, K. ., Yamaguchi, Y. ., Tamura, Y. ., Izawa, S. ., … Kasugai, K. . (2021). Internet Survey of Japanese Patients With Chronic Constipation: Focus on Correlations Between Sleep Quality, Symptom Severity, and Quality of Life. Journal of Neurogastroenterology and Motility, 27(4), 602-611. https://doi.org/10.5056/jnm20135 (Original work published 2021)