Dr. Ito Hiroaki is a gastroenterological surgeon who graduated from the School of Medicine at Jichi Medical University, after which he obtained his medical doctorate at Niigata University and has performed numerous stomach cancer surgeries at Shizuoka Cancer Center, Showa University Koto Toyosu Hospital, and other institutions. At the same time, he continues to conduct research on the subject of cancer micrometastasis, and has received worldwide acclaim for his research on "circulating cancer cells," which play an important role in cancer metastasis. Currently, as an associate professor at Showa University's Institute for Advanced Cancer Research, he is promoting international collaborative research with the aim of perfecting ultra-early cancer diagnosis technology.