21880
This study was therefore aimed at examining whether PEGylation can usefully be applied to improve the lymphatic uptake of interferon alpha 2 and whether this ultimately translates into improved therapeutic efficacy against lymph - resident cancer .
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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:
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