Cals, Jochen W L <br/><br/>
Literature review in biomedical research: useful search engines beyond PubMed.  [electronic resource] 

 -  Journal of clinical epidemiology  Mar 2016 
 - 115-7 p.  digital 
<br/><br/> Publication Type: Letter; Comment 
<br/><br/><label>ISSN: </label>1878-5921 
<br/><br/><label>Standard No.: </label>10.1016/j.jclinepi.2015.10.012  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Humans<br/>Publishing<br/>Research Report--standards<br/>Writing