6019
At a PaCO2 of 40 mmHg , baseline brain pHi measured 7 . 03 + / - 0 . 04 , while regional cortical blood flow was 47 . 0 + / - 4 . 3 ml . 100 g - 1 . min - 1 .
 None
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 None