953
Before therapy , the SMA was completely occluded by an embolus at the proximal portion ( a ) , and after the bolus infusion of urokinase ( 600 , 000 IU ) into the SMA , peripheral blood flow was improved .
 embolus, peripheral blood
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Anatomy 
Text: {0} 
Answer:
 embolus, peripheral blood