6399
The complexity of this approach may contribute to the well - established treatment gaps that exist in HF management ; consequently , the risks for morbidity and mortality in this population remain extremely high .
 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