10277
Murine PCLS were exposed to increasing concentrations of ethyl methane sulfonate ' EMS ' ( 0 . 03 - 0 . 4 % ) and formalin ( 0 . 5 - 5mM ) .
 ethyl methane sulfonate, EMS, formalin
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 ethyl methane sulfonate, EMS, formalin