10631
In two - field nodal dissection , two components are included with ( modern two - field ) or without ( traditional two - field ) nodal dissection around both recurrent laryngeal nerve chains in the upper mediastinum .
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Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
 Entities:  
Answer:
 None