This article has been retracted: please see Elsevier's Article Correction, Retraction and Removal Policy (Article withdrawal | Elsevier policy).

This article has been retracted at the request of the Editors.

Within the paper, image duplications were identified in Figures 2, 6, and Supplemental Figure 4. Image duplications were also identified between Figure 1 and Supplemental Figure 4 from this paper and a 2019 publication in another journal. In each case, the duplicated image was modified between versions, such as via rotation and/or shifting the field of view.

The authors state that the duplications were image handling errors and that the adjustments were made to improve visual comparison and do not affect their conclusions.

No authors approve the retraction.

This content is only available as a PDF.

Author notes

The online version of this article contains a data supplement.

The publication costs of this article were defrayed in part by page charge payment. Therefore, and solely to indicate this fact, this article is hereby marked “advertisement” in accordance with 18 USC section 1734.

*

H.X., Y.C., and X.Y. contributed equally to this study.

2017
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