Yasuhiro Ito   Tadayuki Iida   Yuumi Yamamura   Mayu Teramura   Yasushi Nakagami   Kaoru Kawai   Yoichi Nagamura   Ryoji Teradaira   
International Journal of Tryptophan Research. 6(Suppl 1) 75-85 2013年9月 [査読有り]
A decrease in the quality of sleep is believed to cause anxiety and worsen depression. Comparisons of salivary melatonin levels with different factors including quality of sleep, state and trait anxieties, and depression, were conducted to examine...