14161
Levels of 8 - oxo - dG were significantly elevated in both urine and PMNC of gastric cancer patients compared with healthy controls .
 Chemical: 8 - oxo - dG
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: 8 - oxo - dG