Correction to: Regen Eng Transl Med

https://doi.org/10.1007/s40883-017-0028-9

This paper was published without a complete acknowledgment, which follows here:

The authors would like to acknowledge financial support from the UT-Portugal Collaborative Research program (CoLAB). JRC and MEW are supported by NSF Graduate Research Fellowships (DGE-1610403). This work was supported by the National Institutes of Health Grant R01-EB022025.