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However , a correlation was observed between SF levels of IL - 8 with those of lactate , LDH , beta 2 - microglobulin and glucose .
 IL - 8, LDH, beta 2 - microglobulin
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 IL - 8, LDH, beta 2 - microglobulin