2058
Injection of indomethacin , a nonselective COX inhibitor , on the day of ovulation and the following day decreased serum levels of progesterone , as did injection of the selective COX - II inhibitor NS - 398 .
 Anatomy: serum
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Anatomy 
Text: {0} 
 Entities: serum 
Answer:
 Anatomy: serum