TY - JOUR T1 - Intervention Study to Improve Meal Habit, Sleep Habit, Circadian Typology And School Marks in Japanese Elementary School Students JO - Journal of Sleep and Sleep Disorder Research VL - 1 IS - 1 SP - 42 EP - 54 PY - 2015/1// T2 - AU - Hitomi, Takeuchi AU - Mizuka, Nakao AU - Wataru, Kurose AU - Takahiro, Kawada AU - Teruki, Noji AU - Miyo, Nakade AU - Fujiko, Tsuji AU - Mirada, Krejci AU - Tetsuo, Harada SN - 2574-4518 DO - https://doi.org/10.14302/issn.2574-4518.jsdr-16-1413 UR - https://openaccesspub.orgjsdr/article/516 KW - academic achievement mark KW - sleep habits KW - circadian typology KW - elementary school students KW - critical hours of 9 hours for better mark ER -