机译:食管和胃Gas门癌根治术后预后因素的Cox比例风险模型分析-一项基于随机抽样研究的河北医科大学第四医院1996-2004年期间的病例
Departments of Chemotherapy Thoracic Surgery & Pathology the 4th Hospital of Hebei Medical University Shijiazhuang 050011 Hebei Province China;
Department of Epidemiology Tianjin Medical University of Cancer Intitute and Hospital Tianjin 300060 China;