How to reduce unnecessary duplication: use PROSPERO

Effects of gum chewing on postoperative bowel motility after caesarean section: a meta-analysis of randomised controlled trials

(2014) Y-P Zhu et al.   BJOG-AN INTERNATIONAL JOURNAL OF OBSTETRICS AND GYNAECOLOGY

Chewing gum in preventing postoperative ileus in women undergoing caesarean section: a systematic review and meta-analysis of randomised controlled trials

(2014) L Craciunas et al.   BJOG-AN INTERNATIONAL JOURNAL OF OBSTETRICS AND GYNAECOLOGY

An Evaluation of Epidemiological and Reporting Characteristics of Complementary and Alternative Medicine (CAM) Systematic Reviews (SRs)

(2013) Lucy Turner et al.   PLoS One

Misgivings about PROSPERO in solving the problem of duplicate systematic reviews

(2013) N. Waugh   BMJ-British Medical Journal

SPIRIT 2013 explanation and elaboration: guidance for protocols of clinical trials

(2013) A.-W. Chan et al.   BMJ-British Medical Journal

The problem of duplicate systematic reviews

(2013) D. Moher   BMJ-British Medical Journal

Overlapping meta-analyses on the same topic: survey of published studies

(2013) K. C. Siontis et al.   BMJ-British Medical Journal

Registration of systematic reviews: PROSPERO

(2012) Patrick FW Chien et al.   BJOG-AN INTERNATIONAL JOURNAL OF OBSTETRICS AND GYNAECOLOGY

Establishing a Minimum Dataset for Prospective Registration of Systematic Reviews: An International Consultation

(2011) Alison Booth et al.   PLoS One

Bias Due to Changes in Specified Outcomes during the Systematic Review Process

(2010) Jamie J. Kirkham et al.   PLoS One

Preferred Reporting Items for Systematic Reviews and Meta-Analyses: The PRISMA Statement

(2009) David Moher et al.   PLOS MEDICINE