<p>Professor Sang Cheul Oh of the Division of Oncology/Hematology, Department of Internal Medicine, Korea University College of Medicine, Professor Sang‑Hee Kang of the Department of Surgery, Korea University’s Guro Hospital, and Professor Sun Young Yim of the Division of Gastroenterology and Hepatology, Department of Internal Medicine, Korea University College of Medicine announced a new genetic classification system for gastric cancer by a multicenter study with the University of Texas MD Anderson Cancer Center. This research laid the foundation of personalized treatment for gastric cancer.</p>