TY  - GEN
AU  - Kohyama,Jun
TI  - Late nocturnal sleep onset impairs a melatonin shower in young children
SN  - 0172-780X
PY  - 2003///0306
KW  - Child, Preschool
KW  - Circadian Rhythm
KW  - physiology
KW  - Humans
KW  - Japan
KW  - Melatonin
KW  - analogs & derivatives
KW  - Photic Stimulation
KW  - Photoperiod
KW  - Saliva
KW  - chemistry
KW  - Sleep
KW  - Time Factors
KW  - Urine
N1  - Publication Type: Comment; Letter
ER  -