[Circadian rhythm of TSH--mechanism of its development in rats].
D000818:Animals; D002940:Circadian Rhythm; D005260:Female; D007031:Hypothalamus / Q000502:physiology; D008297:Male; D010775:Photic Stimulation; D051381:Rats; D013972:Thyrotropin / Q000097:blood*
D013972:Thyrotropin