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Moreover , EATN caused an increase in cyclic AMP ( cAMP ) levels and attenuated intracellular Ca ( 2 + ) mobilization in thrombin - activated human platelets .
 EATN, cyclic AMP, cAMP, Ca ( 2 + )
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 EATN, cyclic AMP, cAMP, Ca ( 2 + )