Adipose-tissue-derived therapeutic cells in their natural environment as an autologous cell therapy strategy: the microtissue-stromal vascular fraction oleh S Nürnberger, C Lindner, J Maier, K Strohmeier, C Wurzer, P Slezak, S Suessner, W Holnthoner, H Redl, S Wolbank, E Priglinger