Statistics from Altmetric.com
PubMed allows truncation of a given term by using an asterisk (*).1 Its purpose is to retrieve the first 600 words containing the part of the word preceding the asterisk, and it is a recommended practice when building the queries to be used in systematic reviews.2 However, unawareness on how truncation is enforced—particularly when searching for expressions with more than one word—can result in obtaining a lower number of results than what would be intuitively expected.
PubMed documentation explicitly states that “truncation bypasses Automatic Term Mapping and automatic explosion”,1 so that a truncated search can return less …
If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.