Sieunarine K، May J، White GH، Harris JP (أغسطس 1997). "Anomalous azygos vein: A potential danger during endoscopic thoracic sympathectomy". Australian and New Zealand Journal of Surgery. ج. 67 ع. 8: 578–9. DOI:10.1111/j.1445-2197.1997.tb02046.x. PMID:9287933.
Sieunarine K، May J، White GH، Harris JP (أغسطس 1997). "Anomalous azygos vein: A potential danger during endoscopic thoracic sympathectomy". Australian and New Zealand Journal of Surgery. ج. 67 ع. 8: 578–9. DOI:10.1111/j.1445-2197.1997.tb02046.x. PMID:9287933.