From: Secretion pattern of melatonin after head injury
Peak mean
Lowest mean
concentrations
First day
14.22 ± 4.49 pg/ml
8.49 ± 3.4 pg/ml
at 03.00
at 08.00
Second day
13.56 ± 8.66 pg/ml
8.67 ± 2.98 pg/ml
at 06.00
at 12.00