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1. Phrenic nerve
2. Ventral vagal trunk
3. Dorsal vagal trunk
4. Esophagus
5. Left vagus nerve
6. Thoracic duct
7. Left subclavian a.
8. Costocervical trunk a.
9. Deep cervical a.
10. Superficial cervical a.
11. Internal thoracic a.
12. Axillary a.
13. Supreme intercostal a.
14. Dorsal scapular a.
15. Vertebral a.