Department of Digestive Surgery;
St.Mary’s Hospital;
Terni 05100;
Italy;
Department of Surgical Sciences;
Sapienza University of Rome;
Rome 00161;
Italy;
Department of General Surgery and Surgical Oncology;
San Filippo Neri Hospital;
Rome 00135;
Italy;
Biostatistics and Bioinformatic Unit;
Scientific Direction;
IRCCS Regina Elena National Cancer Institute;
Rome 00144;
Italy;
Department of Medical Oncology;
St.Mary’s Hospital;
Terni 05100;
Italy;
Division of Surgical Oncology and Endocrine Surgery;
Mays Cancer Center;
University of Texas Health Science Center San Antonio;
San Antonio;
TX 78229;
United States;
Division of Surgical Oncology;
Department of Surgery;
City of Hope National Medical Center;
Duarte;
LA;
91010;
United States;
Gastric Cancer; Lymphadenectomy; Gastrectomy; Staging; N stage; Surveillance; Epidemiology; and End Results;