11817
This poor outcome was due to distant metastatic disease ; 10 patients had distant metastases at presentation and a further 6 developed distant metastases during follow up .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities:  
Answer:
 None