3846
Subsets of peripheral lymphocytes , immunoglobulins ( IgG , IgA , IgM ) , complement proteins , and tumor necrosis factor - alpha ( TNF - alpha ) levels were evaluated .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 None