14012
The present study investigated the developmental neurotoxicity elicited by Mn exposure ( 5 , 10 and 20 mg / kg ; i . p . ) from postnatal day 8 to PN27 in rats .
 Chemical: Mn
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: Mn