1740
Invasion of adjacent organs was more frequent in the RSCM group than in the RSCB group and the Ki - 67 labeling index of the tumors was significantly higher in the former group .
 organs, RSCM, RSCB, tumors
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Anatomy 
Text: {0} 
Answer:
 organs, RSCM, RSCB, tumors