the high point for serum corticosterone ( b ) , 18-hydroxy-11-deoxycorticosterone ( 18-hydroxy-doc ) , and 11-deoxycorticosterone ( doc ) concentrations occurred at the beginning of the dark period ( 1800 hours ) , and the low point occurred at the onset of the light period ( 0600 hours ) .
C0000173
18-hydroxy-doc
C0011710
11-deoxycorticosterone