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The thermoregulatory circuitry of " endogenous pyrogen ( EP ) ^ - hypothalamus Na ( + ) / Ca ( 2 + ) - cAMP ^ " was partially confirmed in this study .
 Chemical: Na ( + ) / Ca ( 2 + ) - cAMP
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: Na ( + ) / Ca ( 2 + ) - cAMP