3869
Rats were treated with a single IV injection of puromycin aminonucleoside , ( PAN , 7 . 5 mg / kg ) and 24 hour urine samples were obtained prior to sacrifice on days 3 , 5 , 7 , 10 , 17 , 27 , 41 ( N = 5 - 10 per group ) .
 puromycin aminonucleoside, PAN
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 puromycin aminonucleoside, PAN