Correction to: Trials 21, 712 (2020)
http://orcid.org/10.1186/s13063-020-04611-9
Following publication of the original article [1], we were notified that the PREP-IT Investigators were not listed as contributors. They are all listed in Supplementary file 1 linked to this erratum.
Supplementary information
Supplementary information accompanies this paper at https://doi.org/10.1186/s13063-020-04767-4.
Reference
1. Sprague, et al. Cluster identification, selection, and description in cluster randomized crossover trials: the PREP-IT trials. Trials; 2020; 21, 712. [DOI: https://dx.doi.org/10.1186/s13063-020-04611-9] [PubMed: https://www.ncbi.nlm.nih.gov/pubmed/32787892][PubMedCentral: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7425374]
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Abstract
An amendment to this paper has been published and can be accessed via the original article.
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Details
1 McMaster University, Department of Surgery, Division of Orthopaedic Surgery, Hamilton, Canada (GRID:grid.25073.33) (ISNI:0000 0004 1936 8227); McMaster University, Department of Health Research Methods, Evidence, and Impact, Hamilton, Canada (GRID:grid.25073.33) (ISNI:0000 0004 1936 8227)
2 McMaster University, Department of Surgery, Division of Orthopaedic Surgery, Hamilton, Canada (GRID:grid.25073.33) (ISNI:0000 0004 1936 8227)
3 University of Maryland School of Medicine, Department of Epidemiology and Public Health, Baltimore, USA (GRID:grid.411024.2) (ISNI:0000 0001 2175 4264)
4 Association of periOperative Registered Nurses, Denver, USA (GRID:grid.478271.f) (ISNI:0000 0001 2171 7535)
5 McMaster University, Department of Health Research Methods, Evidence, and Impact, Hamilton, Canada (GRID:grid.25073.33) (ISNI:0000 0004 1936 8227)
6 University of Pennsylvania Perelman School of Medicine, Department of Orthopaedic Surgery, Philadelphia, USA (GRID:grid.25879.31) (ISNI:0000 0004 1936 8972)
7 Indiana University School of Medicine, Department of Orthopaedic Surgery, Indianapolis, USA (GRID:grid.257413.6) (ISNI:0000 0001 2287 3919)
8 Banner Health and the University of Arizona-Tucson, Department of Orthopaedics, Tucson, USA (GRID:grid.134563.6) (ISNI:0000 0001 2168 186X)
9 Parc Taulí Hospital Universitari, Institut d’Investigació i Innovació Parc Taulí I3PT, Universitat Autònoma de Barcelona, Orthopedic Department, Sabadell, Spain (GRID:grid.7080.f)
10 University Hospital Vall d’Hebron, Department of Orthopaedic Surgery and Traumatology, Barcelona, Spain (GRID:grid.411083.f) (ISNI:0000 0001 0675 8654)
11 University of Maryland School of Medicine, Department of Medicine, Baltimore, USA (GRID:grid.411024.2) (ISNI:0000 0001 2175 4264)
12 University of Maryland, R Adams Cowley Shock Trauma Center, Department of Orthopaedics, Baltimore, USA (GRID:grid.411024.2)