Physiological Levels of Melatonin Relate to Cognitive Function and Depressive Symptoms: The HEIJO-KYO Cohort
Obayashi K* , Saeki K , Iwamoto J , Tone N , Tanaka K , Kataoka H , Morikawa M , Kurumatani N
J Clin Endocrinol Metab 100(8) 3090-3096 Aug, 2015