多项选择题
A.right phrenic n. B.superior vena cava C.ascending aortic a. D.right vagus n. E.right pericardiacophrenic vessels
A.femoral sheath B.femoral nerve C.lymphatic vessels D.pectineus E.femoral artery and vein
A.inferior vena cava B.aortic a. C.esophagus D.vagus n. E.thoracic duct