2012
They exhibited specific and high - affinity binding of somatostatin - 14 , somatostatin - 28 and octreotide , suggesting a preferential expression of the SSTR2 receptor subtype .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Anatomy 
Text: {0} 
Answer:
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