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Interestingly , these effects occurred at Lu AF21934 brain free concentrations that showed functional activity in in vitro screens ( calcium flux and electrophysiology assays ) .
 Chemical: Lu AF21934; Chemical: calcium
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: Lu AF21934; Chemical: calcium