1013
The aim of this study was to investigate whether mutations in the glucocorticoid receptor could account for the increasing unresponsiveness of patients with chronic lymphatic leukemia ( CLL ) to combination chemotherapy .
 glucocorticoid receptor
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 receptor