Robotic Natural Orifice Specimen Extraction Surgery Versus Robotic Transabdominal Specimen Extraction Surgery for Early-Stage Rectal Cancer

The Second Xiangya Hospital of Central South University, Changsha

Cancer Institute and Hospital, Chinese Academy of Medical Sciences, Beijing

Three Gorges Hospital Affiliated to Chongqing University, Chongqing

Fujian Cancer Hospital, Fuzhou

The Second Affiliated Hospital of Harbin Medical University, Harbin

The First Affiliated Hospital of Nanchang University, Nanchang

Zhongshan Hospital, Fudan University, Shanghai

The First Affiliated Hospital of Zhengzhou University, Zhengzhou