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Our in vitro studies showed that cyclic adenosine 3 ' , 5 ' - monophosphate ( cAMP ) accumulation was not a primary cause of the ritodrine - induced SAA increase .
 Chemical: cyclic adenosine 3 ' , 5 ' - monophosphate; Chemical: cAMP; Chemical: ritodrine
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: cyclic adenosine 3 ' , 5 ' - monophosphate; Chemical: cAMP; Chemical: ritodrine