Objectives Searching multiple sources when conducting systematic reviews is considered
good practice. We aimed to investigate the impact of using sources beyond PubMed in …

Background Publication bias is a major threat to the validity of systematic reviews. Searches
of clinical trials registries can help to identify unpublished trials, though little is known about …

Background As the number of systematic reviews is growing rapidly, we systematically
investigate whether meta-analyses published in leading medical journals present an outline …

Objective To develop and evaluate a search strategy for identifying systematic reviews by
using a publicly available MEDLINE interface (PubMed). Design Diagnostic test …

Objective To simulate possible changes in systematic review results if rapid review methods
were used. Study Design and Setting We recalculated meta-analyses for binary primary …

Objective The research investigated whether conducting a supplementary search of
PubMed in addition to the main MEDLINE (Ovid) search for a systematic review is …

Objective To develop, through revision of the Cochrane Collaboration search strategy for
OVID-MEDLINE, a highly sensitive search strategy to retrieve reports of controlled trials …

Methods. The systematic reviews selected were all new reviews of interventions published
in issue 4, 2009, of the Cochrane Library2 and from a search (based on Moher et al3) of the …

Abstract Background When conducting an Overviews of Reviews on health-related topics, it
is unclear which combination of bibliographic databases authors should use for searching …

Background Systematic literature searching is recognised as a critical component of the
systematic review process. It involves a systematic search for studies and aims for a …