Retraction
This article [1] has been retracted by the Editor. Figure 1 (panels: A, C, D, E, F), 2 (panels: A, E, F, G, H) and 4, as well as parts of the text, were duplicated from Tian et al., 2012 [2]. The findings of this study are therefore unreliable. The Editor has been unable to confirm with Southern Medical University whether an institutional investigation has taken place. We have not been able to contact the authors.
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