4755
However , 2 minimum alveolar concentration anesthesia did significantly decrease the calculated VE at a PCO2 of 60 mmHg ( from 7 . 4 + / - 1 . 2 to 4 . 0 + / - 0 . 6 l . min - 1 ) , indicating a rightward shift in the response relationship .
 None
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 None