Sakata, Jun <br/><br/>
Assessment of the nodal status in ampullary carcinoma: the number of positive lymph nodes versus the lymph node ratio.  [electronic resource] 

 -  World journal of surgery  Sep 2011 
 - 2118-24 p.  digital 
<br/><br/> Publication Type: Comparative Study; Journal Article 
<br/><br/><label>ISSN: </label>1432-2323 
<br/><br/><label>Standard No.: </label>10.1007/s00268-011-1175-7  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Adult<br/>Aged<br/>Aged, 80 and over<br/>Ampulla of Vater--pathology<br/>Analysis of Variance<br/>Cohort Studies<br/>Common Bile Duct Neoplasms--mortality<br/>Disease-Free Survival<br/>Female<br/>Follow-Up Studies<br/>Humans<br/>Lymph Node Excision--statistics & numerical data<br/>Lymph Nodes--pathology<br/>Lymphatic Metastasis<br/>Male<br/>Middle Aged<br/>Multivariate Analysis<br/>Neoplasm Invasiveness--pathology<br/>Neoplasm Staging<br/>Palliative Care--methods<br/>Pancreaticoduodenectomy--methods<br/>Predictive Value of Tests<br/>Proportional Hazards Models<br/>Retrospective Studies<br/>Risk Assessment<br/>Survival Analysis<br/>Time Factors