Guest Editor.

Prof. Shukui Qin is the Chief Physician of the Cancer Center, Jinling Hospital, and a Full Professor at Nanjing Chinese Medicine University and Nanjing Medical University, Nanjing, China. Prof. Qin's research is focused on the accurate diagnosis and treatment of digestive system tumors and related clinical studies. Prof. Qin also founded the Federation of Asian Clinical Oncology (FACO) and is the past president and current executive member of the council. [Extracted from the article]