Abstract
[This corrects the article DOI: 10.1371/journal.pone.0148165.].
Highlights
There is an error in the penultimate sentence under the subheading “Participants” in the Materials and Methods section
The correct sentence is: The study was approved by the institutional review board of Severance hospital, Yonsei University College of Medicine (4-2012-0458)
Summary
There is an error in the penultimate sentence under the subheading “Participants” in the Materials and Methods section.
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