26952
One mechanism by which chronic MeHg may exert its neurotoxicity is via sustained disruption of intracellular calcium homeostasis , with a consequent increase of intracellular Ca ( 2 + ) ions in vulnerable neurons .
 Chemical: MeHg; Chemical: calcium; Chemical: Ca ( 2 + )
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: MeHg; Chemical: calcium; Chemical: Ca ( 2 + )