Halperin, M <br/><br/>
Re: "estimability and estimation in case-referent studies".  [electronic resource] 

 -  American journal of epidemiology  May 1977 
 - 496-502 p.  digital 
<br/><br/> Publication Type: Letter 
<br/><br/><label>ISSN: </label>0002-9262 
<br/><br/><label>Standard No.: </label>10.1093/oxfordjournals.aje.a112409  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Epidemiologic Methods<br/>Mathematics