2502
Therefore , SVSPs have been used as refined tools to study molecular mechanisms involved in the activation of key factors that control hemostasis and as therapeutic agents in various thrombotic and hemostatic conditions .
 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