1445
The sensitivity and specificity of s - VEGF at the cut - off level of 100 pg / ml , as determined by the receiver - operating - characteristics curve , were 80 . 0 % and 72 . 5 % , 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