TIL the best response to being interrupted in meetings isn’t what I expected

I was reading a newsletter, and it mentioned something that surprised me. When someone interrupts you repeatedly in a meeting, most people either stop talking or try to talk over them. The advice was to simply say: "I'd like to finish my point first." Short. Direct. No apology. Apparently it works because it makes the interruption visible without turning it into a confrontation. Have any of you tried this? Or is there a better way to deal with serial interrupters?