18624
Pb acetate was injected intraperitoneally ( i . p . ) at 40 mg / kg body weight / day for 10 days to establish the Pb toxicity model .
 Chemical: Pb acetate; 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 acetate; Chemical: Pb