19871
Five different concentrations of squalene ( 1250 - 20 , 000 mu g / ml for human lymphocytes and 0 . 07 - 1 . 12mg / kg for rat lymphocytes ) were studied .
 Chemical: squalene
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: squalene