26989
Transcriptomic analysis of cultured whale skin cells exposed to hexavalent chromium [ Cr ( VI ) ] .
 hexavalent chromium, Cr ( VI )
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 hexavalent chromium, Cr ( VI )