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Irregular bedtime and nocturnal cellular phone usage as risk factors for being involved in bullying: a... http://t.co/WdBUITjDq6
Irregular bedtime and nocturnal cellular phone usage as risk factors for being involved in bullying: a... http://t.co/WdBUITjDq6
Irregular bedtime and nocturnal cellular phone usage as risk factors for being involved in bullying: a... http://t.co/R7IpfoxnlC
#Bullying behavior is predicted by irregular #sleep and late night cell phone use in study of 19k Japanese teens: http://t.co/l1OriYAj
「消灯後の携帯使用、心に悪影響か」 http://t.co/fkNzHls8 については、そのものじゃないけど関連論文がPLoS One に出てる。 http://t.co/nu3AQn19 おそらくこれのいじめたりいじめられたりしたか、をうつ病スケールか何かに置換えた物だろう。