Xue, Xiaonan <br/><br/>
Testing the proportional hazards assumption in case-cohort analysis.  [electronic resource] 

 -  BMC medical research methodology  Jul 2013 
 - 88 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>1471-2288 
<br/><br/><label>Standard No.: </label>10.1186/1471-2288-13-88  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Aged<br/>Cohort Studies<br/>Female<br/>Humans<br/>Kaplan-Meier Estimate<br/>Likelihood Functions<br/>Middle Aged<br/>Proportional Hazards Models<br/>Time Factors