Moher, DavidShekelle, PaulStewart, Lesley A2016-05-182016-05-182016-02-24Systematic Reviews. 2016 Feb 24;5(1):36http://dx.doi.org/10.1186/s13643-016-0205-9http://hdl.handle.net/10393/34699Contributing reviewers A peer-reviewed journal would not survive without the generous time and insightful comments of the reviewers, whose efforts often go unrecognized. Although final decisions are always editorial, they are greatly facilitated by the deeper technical knowledge, scientific insights, understanding of social consequences, and passion that reviewers bring to our deliberations. For these reasons, the Editors-in-Chief and staff of Systematic Reviews warmly thank the 282 reviewers whose comments helped to shape the journal, for their invaluable assistance with review of manuscripts in Volume 4 (2015).2016-05-18enMoher et al.