Affiliation: | 1. Department of Pathology, Kyorin University School of Medicine, , Mitaka, Japan;2. Department of General Thoracic Surgery, Jichi Medical University, , Shimotsuke, Japan;3. Department of Anatomy, St. Marianna University School of Medicine, , Kawasaki, Japan;4. Department of Surgery, Kyorin University School of Medicine, , Mitaka, Japan |