Correction Volume 15, Issue 24 pp 15703—15704

Correction for: Sonic hedgehog signaling promotes angiogenesis of endothelial progenitor cells to improve pressure ulcers healing by PI3K/AKT/eNOS signaling

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Figure 3. SHH pathway induces angiogenesis properties of EPCs by PI3K/AKT/eNOS signaling. (A, B) The EPCs were treated with SAG (1 μM), cyclopamine (10 μM), Y294002 (5 μM), or co-treated with SAG (1 μM) and Y294002 (5 μM). The angiogenesis properties were analyzed by tube formation assays. N = 3.