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Binding of 3H-dexamethasone and 3H-aldosterone by peripheral lymphocyte receptors was investigated in healthy persons and hypertensive patients before and after 2-week captopril treatment .
 protein: peripheral lymphocyte receptors
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 protein: peripheral lymphocyte receptors