1. Vascular Remodeling and Regeneration Group, Department of Cardiology and Angiology, Hannover Medical School, Carl-Neuberg-Str. 1, D-30625 Hannover, Germany;
2. Institute for Molecular and Translational Therapeutic Strategies (IMTTS), Hannover Medical School, Carl-Neuberg-Str. 1, D-30625 Hannover, Germany;
3. National Heart and Lung Institute, Imperial College, Sydney St, Chelsea, London SW3 6NP, UK