According to my opinion, chemotherapy is not likely to be needed in stage 1. Moreover, in some cases, the relatively konmareng and surgeon want to use chemotherapy to lump it into smaller easy to surgery.
According to my opinion, it is not likely to require chemotherapy in stage 1. There are some cases where the tumor is growing and surgeons prefer to use chemotherapy to the tumor is smaller for ease of operation.
In my opinion chemotherapy shouldn't be used in stage 1. Besides some cases tumor rather โตและ surgeons to use. Chemotherapy to make the meat loaf is smaller for convenient operation.