Mitchell, L <br/><br/>
Survival analysis in practice.  [electronic resource] 

 -  Dental update  Apr 1991 
 - 125-8 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0305-5000 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Humans<br/>Pit and Fissure Sealants<br/>Survival Analysis