Influence of altitude training of the migratory activity of mesenchymal stem cells - de Marees, M.; Knuth, S.; Wahl, P.; Achtzehn, S.; Buitrago, S.; Tandi, S.; Sommerhäuser, T.; Suhr, F.; Schmidt, A.; Bloch, W.; Mester, J. (12th Annual Congress of the European College of Sport Science, Jyväskylä, Finland - July 11-14th 2007, 2007)