23072
Pharmacokinetic , neurochemical , stereological and neuropathological studies on the potential effects of paraquat in the substantia nigra pars compacta and striatum of male C57BL / 6J mice .
 Chemical: paraquat
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: paraquat 
Answer:
 Chemical: paraquat