2168
Two of the three groups were submitted to two different levels of hypoxia ( FiO2 = 0 . 05 , group F5 and FiO2 = 0 . 1 , group F10 ) and the third to normoxia ( FiO2 = 0 . 21 , group F21 ) in a thermoneutral and controlled environment .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
 None