12694
The reduced selenium in the maternal circulations observed in the preeclamptic mothers support the hypothesis that insufficient selenium concentration may be a contributing factor to the pathophysiological mechanisms associated with preeclampsia , and optimizing the dietary selenium intake through supplementation could produce demonstrable clinical benefits .
 Chemical: selenium; Chemical: selenium; Chemical: selenium
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: selenium; Chemical: selenium; Chemical: selenium