19964
Moreover , angiogenesis , macrophage accumulation , and the levels of VEGF and TGF - beta were comparable between Plg ( + / + ) and Plg ( - / - ) mice in heterotopic ossification .
 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