1835
The main route of excretion ( parent and metabolites ) was the renal route , as urine accounted for 69 - 77 % , while feces only 13 - 22 % , of the total radioactivity .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 None