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Open Peer Review Reports for: Hospital length of stay variation and comorbidity of mental illness: a retrospective study of five common chronic medical conditions

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Pre-publication versions of this article are available by contacting

Original Submission
15 Apr 2018 Submitted Original manuscript
8 May 2018 Reviewed Reviewer Report - Jianzhen Zhang
14 May 2018 Reviewed Reviewer Report - Monica Zolezzi
14 Jun 2018 Author responded Author comments - Nazlee Siddiqui
Resubmission - Version 2
14 Jun 2018 Submitted Manuscript version 2
19 Jun 2018 Editorially accepted
27 Jun 2018 Article published 10.1186/s12913-018-3316-2

How does Open Peer Review work?

Open peer review is a system where authors know who the reviewers are, and the reviewers know who the authors are. If the manuscript is accepted, the named reviewer reports are published alongside the article. Pre-publication versions of the article are available by contacting

You can find further information about the peer review system here.