13449
In this study , we explored the kinetic relationship of ROS with calcium and attempted to dissect the calcium ion channels responsible for calcium imbalance after arsenic exposure .
 Chemical: calcium; Chemical: calcium; Chemical: calcium; Chemical: arsenic
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: calcium; Chemical: calcium; Chemical: calcium; Chemical: arsenic