【演題】

　Acute Postoperative Pain is the Most Severe at the Site of Chest Tube Insertion in Multiportal Video-assisted Thoracoscopic Surgery Y. SANO

　Risk assessment of severe pulmonary complications leading to death or oxygen therapy after lung resection in patients with primary lung cancer S. Otani

　Is Subxiphoid Uniportal Video-Assisted Thoracoscopic Mediastinal Surgery Safe, Minimally Invasive, and Radical?　　Yu mori