3253
The SPV during hypotension was 15 . 7 + / - 6 . 7 mm Hg in the HEM group , compared with 9 . 1 + / - 2 . 0 mm Hg in the SNP group ( P less than 0 . 02 ) .
 hypotension, HEM, SNP
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 hypotension, HEM, SNP