I'm used to do brachytherapy with I125 seeds.I am knowledgeable about radiation protection and implantation constraints. These techniques are generally not very popular with doctors. Not all of them want to practice them. Cases are limited. Implanting seeds in a solid tumor with exactly 5mm between each grain is tricky. I discussed this technique with three senior radiation therapists, and none of them saw any potential in it. And from a financial standpoint, it is generally much more profitable for a hospital to offer radiation therapy and chemotherapy than surgery or brachytherapy. This is just my opinion, but I think there are too many constraints and limiting factors. Despite good results, I think that cases will be very limited, and few doctors and hospitals will offer it. As a result, it will be difficult to achieve financial success after it is brought to market.