Li, Li <br/><br/>
Search strategies to identify observational studies in MEDLINE and Embase.  [electronic resource] 

 -  The Cochrane database of systematic reviews  03 2019 
 - MR000041 p.  digital 
<br/><br/> Publication Type: Journal Article; Research Support, Non-U.S. Gov't; Systematic Review 
<br/><br/><label>ISSN: </label>1469-493X 
<br/><br/><label>Standard No.: </label>10.1002/14651858.MR000041.pub2  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Abstracting and Indexing--standards<br/>Databases, Bibliographic<br/>Information Storage and Retrieval--methods<br/>MEDLINE<br/>Non-Randomized Controlled Trials as Topic<br/>Observational Studies as Topic<br/>Sensitivity and Specificity<br/>Systematic Reviews as Topic