20499
These results suggest that miR - 21 may provide a novel mechanism for understanding cisplatin resistance in gastric cancer by modulating PTEN / PI3K / Akt pathway .
 Chemical: cisplatin
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: cisplatin