6325
The aim of the current study was to determine whether or not RI alpha expression is increased in adenomas of primary hyperparathyroidism ( PHPT ) , because monoclonal proliferation has been demonstrated in both adenomas and nodular hyperplasia .
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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:
 None