Correction to: Scientific Reports https://doi.org/10.1038/s41598-018-22971-w, published online 16 March 2018

In Figure 4, the panels r and s were presented as s and r respectively. The correct Figure 4 appears below as Figure 1.

Figure 1
figure 1

.

In addition, this Article contains an error in the Methods section under subheading ‘Collagen gel preparation’ where

“Rat tail type 1 collagen gels (Merck 08–115) were prepared at 1 mg/ml in 10 × M199 (Life Technologies 11825–015) and the pH was adjusted to 7.5 with 2.2% (w/v) NaHCO3. 10 × M199 and NaHCO3 were both measured at 1/10 of the final volume.”

should read:

“Rat tail type 1 collagen gels (Merck 08–115) were prepared at 1 mg/ml in 10 × M199 (Life Technologies 11825–015) and the pH was adjusted with 2.2% (w/v) NaHCO3. 10 × M199 and NaHCO3 were both measured at 1/10 of the final volume.”