Erren, Thomas C <br/><br/>
Longitudinal Data Are Needed.  [electronic resource] 

 -  Deutsches Arzteblatt international  09 2016 
 - 615 p.  digital 
<br/><br/> Publication Type: Letter; Comment 
<br/><br/><label>ISSN: </label>1866-0452 
<br/><br/><label>Standard No.: </label>10.3238/arztebl.2016.0615a  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Longitudinal Studies<br/>Research Design