TY  - GEN
AU  - Kripke,D F
TI  - Ultradian sleep rhythms and cortisol
SN  - 0006-3223
PY  - 1987///0828
KW  - Circadian Rhythm
KW  - Humans
KW  - Hydrocortisone
KW  - blood
KW  - Sleep Stages
KW  - physiology
KW  - Sleep, REM
N1  - Publication Type: Letter
UR  - https://doi.org/10.1016/0006-3223(87)90095-3
ER  -