Correction: Period2 Deficiency Blunts Hypoxia-Induced Mobilization and Function of Endothelial Progenitor Cells

The images for Fig. 2B are incorrect. The authors have provided a correct version here.

Fig 2. Per2^−/− decreased the number of CD34+ progenitors and capillary density in mice.

(A) Representative immunostaining of CD34 to identify progenitors and (B) CD31 to identify capillaries. Original magnification: 400×. Quantitative analysis of (C) CD34+ cells and (D) capillary density (** p<0.01 vs sham-operated, ## p<0.01 vs MI WT).