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The first group received only 200 mg / kg NAC intraperitoneal ( i . p . ) once every 24 h for 5 days ( group 1 ) ; the second group received 20 mg / kg doxorubucine ( DOX ) i . p . single dose plus NAC 200 mg / kg i . p . once every 24 h for 5 days ( group 2 ) ; the third group received DOX 20 mg / kg DOX i . p . single dose ( group 3 ) and the fourth group , which is also the control group , received saline ( group 4 ) .
 Chemical: NAC; Chemical: doxorubucine; Chemical: DOX; Chemical: NAC; Chemical: DOX; Chemical: DOX
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: NAC; Chemical: doxorubucine; Chemical: DOX; Chemical: NAC; Chemical: DOX; Chemical: DOX