TY - JOUR AU - Schwer, A TI - Survival effect of neoadjuvant radiotherapy before esophagectomy for patients with esophageal cancer: a surveillance, epidemiology, and end-results study JO - Int J Radiat Oncol Biol Phys VL - 73 PY - 2009 DO - 10.1016/j.ijrobp.2008.04.022 L3 - PubMed-ID: 18538500 SP - 449 EP - 455 N1 - et al. ER -