3824
The biological effect of the perfluorocarbon - based artificial oxygen carrier ( Oxygent ) was investigated in tissue - engineered trachea ( TET ) construction .
 tissue - engineered trachea, TET
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Anatomy 
Text: {0} 
Answer:
 tissue - engineered trachea, TET