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MEASUREMENTS: The binding capacity and affinity of the glucocorticoid receptors were measured and compared to clinical data and the plasma cortisol concentrations.
 glucocorticoid receptors
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 glucocorticoid receptors