19305
The histological data revealed a better performance of P . brutia extract enriched formulation in terms of degeneration of hair roots , increased vascularization and a decrease in necrotic area .
 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