1. Merck KGaA; Darmstadt Germany
2. Department of Hypertension & Heart Center; Peking University People's Hospital; Beijing China
3. KARDIOS Kardiologen in Berlin; Berlin Germany
4. Merck KGaA; Darmstadt, Germany; and Universitäts-Herzzentrum Freiburg-Bad Krozingen; Bad Krozingen Germany