586
The mean PTV1 and PTV2 volumes were 452 cm3 ( range 276 - 1074 cm3 ) and 300 cm3 ( range 137 - 567 cm3 ) respectively .
 None
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Anatomy 
Text: {0} 
Answer:
 None