Abstract 9: Pullulan-Collagen Hydrogels Seeded with Adipose-Derived Mesenchymal Stem Cells Enhance Progenitor Cell Recruitment and Functionality. (May 2015) - Barrera, Janos; Kosaraju, Revanth; Rennert, Robert C.; Maan, Zeshaan N.; Duscher, Dominik; Whittam, Alexander J.; Rodrigues, Melanie; Januszyk, Michael; Rajadas, Jayakumar; Gurtner, Geoffrey C.