991
A reduction in blood pressure was only observed at the end of the study , from 142 + / - 17 / 86 . 6 + / - 9 . 1 to 139 + / - 13 / 82 . 9 + / - 8 . 9 mmHg ( P less than 0 . 05 for DBP ) .
 None
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 None