23321
Significant correlations of Mg with Zn in eclampsia and Mg with Fe in preeclampsia and eclampsia were predicted .
 Mg, Zn, Mg, Fe
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 Mg, Zn, Mg, Fe