Does Obesity Affect Outcomes in Patients Undergoing Esophagectomy for Cancer? A Meta-analysis - Kayani, B; Okabayashi, K; Ashrafian, H; Harling, L; Rao, C; Darzi, A; Kitagawa, Y; Athanasiou, T; Zacharakis, E (WORLD JOURNAL OF SURGERY, 2012)