Tochigi, M., Nishida, A., Shimodera, S., Oshima, N., Inoue, K., Okazaki, Y., & Sasaki, T. (2012). Irregular Bedtime and Nocturnal Cellular Phone Usage as Risk Factors for Being Involved in Bullying: A Cross-Sectional Survey of Japanese Adolescents. Public Library of Science.

Tochigi, Mamoru, Atsushi Nishida, Shinji Shimodera, Norihito Oshima, Ken Inoue, Yuji Okazaki, and Tsukasa Sasaki. Irregular Bedtime and Nocturnal Cellular Phone Usage As Risk Factors for Being Involved in Bullying: A Cross-Sectional Survey of Japanese Adolescents. Public Library of Science, 2012.

Tochigi, Mamoru, et al. Irregular Bedtime and Nocturnal Cellular Phone Usage As Risk Factors for Being Involved in Bullying: A Cross-Sectional Survey of Japanese Adolescents. Public Library of Science, 2012.