12875
Lateralized Pb +/- PS induced neurotransmitter changes were assessed only in males because of limited sample sizes of Pb + PS females .
 Chemical: Pb; Chemical: Pb
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: Pb; Chemical: Pb