13041
The osteoblast cells ( hFOB1 . 19 ) were cultured in a medium supplemented with different concentrations ( 50 , 100 , and 200 mu M ) of ferric ammonium citrate as a donor of ferric ion .
 Chemical: ferric ammonium citrate; Chemical: ferric
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: ferric ammonium citrate; Chemical: ferric