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In order to further understand the apparent glucocorticoid resistance in major depressive disorder , circadian variation in cortisol concentration , dexamethasone suppression and glucocorticoid receptor binding in mononuclear leukocytes , polymorphonuclear leukocytes and cultured skin fibroblasts were measured in rigidly defined major depressive disorder patients and non-depressed psychiatric controls .
 cell type: mononuclear leukocytes; cell line: cultured skin fibroblasts; cell type: polymorphonuclear leukocytes
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:
 cell type: mononuclear leukocytes; cell line: cultured skin fibroblasts; cell type: polymorphonuclear leukocytes