Fig. 4

Survival analysis stratified by tumor size: A represents a tumor less than or equal to 2Â cm and B represents a tumor greater than 2Â cm but smaller than 3Â cm; 1 represents overall survival (OS), 2 represents cancer-specific survival (CSS)
Survival analysis stratified by tumor size: A represents a tumor less than or equal to 2Â cm and B represents a tumor greater than 2Â cm but smaller than 3Â cm; 1 represents overall survival (OS), 2 represents cancer-specific survival (CSS)