16562
In vitro incubations in rat hepatocytes with MFA ( 100 mu M ) , followed by LC - MS / MS analyses of extracts , led to the detection of MFA - AMP .
 MFA, MFA - AMP
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 MFA, MFA - AMP