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This corrects the article "Randomization in clinical studies" on page 221.
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Lim and In: Erratum: Randomization in clinical studies
Erratum

Korean J Anesthesiol 2019;72(4):396-396.

Published online: 30 July 2019

DOI: https://doi.org/10.4097/kja.19049.e1

Erratum: Randomization in clinical studies

Chi-Yeon Lim1, Junyong In2

1Department of Biostatistics, Dongguk University College of Medicine, Korea

2Department of Anesthesiology and Pain Medicine, Dongguk University Ilsan Hospital, Goyang, Korea

Copyright © The Korean Society of Anesthesiologists, 2019

This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Korean J Anesthesiol 2019 June 72(3): 221-232
The Appendix of this article contained an error throughout in which an incorrect symbol was used for the assignment: it should be <- characters (which is the gets arrow in R), and not ← symbol in the command lines.
For example, the corrected command lines are as below:

  • > N <- 1000

  • > K <- 3

  • > (rand <- crPar(N, K))

  • Object of class "crPar"

  • design = CR

  • N = 500

  • K = 3

  • groups = A B C

The authors would like to apologize for any inconvenience caused.
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