[1] Asklepios Fachkliniken, Munich, Germany
[2] Univ Duisburg Essen, Essen, Germany
[3] Hosp Grosshansdorf, Hamburg, Germany
[4] Asklepios Klin Harburg, Hamburg, Germany
[5] Klin Loewenstein, Loewenstein, Germany
[6] Krankenhaus Martha Maria Halle Doelau, Halle, Germany
[7] Univ Lubeck, Lubeck, Germany
[8] Merck KGaA, Darmstadt, Germany
[9] Med Univ Vienna, Vienna, Austria