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The present study assessed the biological effects of ( pGlu - Gln ) - CCK - 8 and [ D - Leu - 4 ] - OB3 , smaller isoforms of CCK and leptin , respectively .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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