10449
The hippocampus contents of Al , Fe , Cu , Zn , Se , and Mn were analyzed by inductively coupled plasma - atomic emission spectrometer .
 Al, Fe, Cu, Zn, Se, Mn
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 Al, Fe, Cu, Zn, Se, Mn