%0 Journal Article %T Thoracoabdominal Approach for Large Retroperitoneal Masses: Case Series and Review %A Andre Matteliano %A Darrel Drachenberg %A Siv Venkat %J Archive of "Case Reports in Urology". %D 2019 %R 10.1155/2019/8071025 %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6431445/