11988
( 3 ) A topological analysis of the network is carried out to identify those targets that are most susceptible in human to topical agents including the most critical toxins , as well as to uncover both the toxin - specific mechanisms and pathways .
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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