22902
Furthermore , we observed that AVM - induced expression of P - gp was due to elevation of intracellular calcium concentration ( [ Ca ( 2 + ) ] i ) .
 Chemical: AVM; 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: AVM; Chemical: calcium; Chemical: Ca ( 2 + )