5395
The authors studied insulin effects on tumor and skeletal muscle metabolism with 2 - [ 18F ] - fluoro - 2 - deoxy - D - glucose ( [ 18F ] FDG ) and positron emission tomography ( PET ) .
 tumor, skeletal muscle
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Anatomy 
Text: {0} 
Answer:
 tumor, skeletal muscle