5127
Since Tg is not present in normal human eye muscle a major role of Tg , or Tg - anti - Tg immune complexes , in the pathogenesis of Graves ' ophthalmopathy appears to have been excluded by these findings .
 eye muscle
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Anatomy 
Text: {0} 
Answer:
 eye muscle