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In this study , we performed live imaging analyses of Neuro - 2a cells expressing SCAT3 , a caspase - 3 cleavage peptide sequence linking two fluorescent proteins ; enhanced cyan fluorescence protein ( ECFP ) and Venus , to determine whether sodium arsenite ( NaAsO ( 2 ) ; 0 , 1 , 5 , or 10 mu M ) affects both neurite outgrowth and / or induces apoptosis with the same doses and in the same cell cultures .
 Chemical: sodium arsenite; Chemical: NaAsO ( 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: sodium arsenite; Chemical: NaAsO ( 2 )