21663
The reference group received omeprazole ( 30 mg / kg ) and the control group received NaCl .
 Chemical: omeprazole; Chemical: NaCl
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: omeprazole; Chemical: NaCl