@article{walther_gaede_adams_gelbrich_leichtle_erbs_sonnabend_fikenzer_korner_kiess_et al._2009, 
  title={Effect of Increased Exercise in School Children on Physical Fitness and Endothelial Progenitor Cells: A Prospective Randomized Trial}, 
  volume={120}, 
  DOI={10.1161/circulationaha.109.865808}, 
  number={22}, 
  publisher={Ovid Technologies (Wolters Kluwer Health)}, 
  author={Walther and Gaede and Adams and Gelbrich and Leichtle and Erbs and Sonnabend and Fikenzer and Korner and Kiess and et al.}, 
  year={2009}, 
  month={Nov}
  }