After publication of the Expression of Concern on this article [1, 2], the authors have not provided the underlying data that support the published results. As such we cannot clarify the concerns about the similarities between the articles [1, 3] summarised in the Expression of Concern [2] and so the PLOS ONE Editors retract this article.
XL agreed with the retraction but stands by the published findings. MZ, AQ, LT, and SX either did not respond directly or could not be reached.
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