19737
METHODS : Plasma adrenocorticotropic hormone ( ACTH ) and cortisol were measured in samples from awake cynomolgus monkeys ( Macaca fascicularis , 11 adult males ) obtained at the onset , mid - day , and offset of their 12 - h light cycle .
 Chemical: cortisol
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: cortisol