[1] Boehringer Ingelheim Pharma GmbH & Co KG, Ingelheim, Germany
[2] Int Diabet Ctr Pk Nicollet, Minneapolis, MN USA
[3] Univ Naples 2, Monaldi Hosp, UOC Cardiol, Naples, Italy
[4] George Washington Univ, Ctr Biostat, Rockville, MD USA
[5] Univ Wurzburg & Hosp, Comprehens Heart Failure Ctr, Wurzburg, Germany
[6] Univ Wurzburg & Hosp, Div Renal, Wurzburg, Germany