University Hospital Frankfurt,

Kai 7 · 60590,

Frankfurt Am Main,

Germany

Helios Healthcare,

Endoklinik,

Hambourg,

Germany

The Academic Hospital,
Cologne,
Merheim-Holweide,
Germany

Sankt Katharinen Krankenhaus GmbH
Seckbacher Landstraße 6
560389 Frankfurt,

Germany

University Of Heidelberg Hospital,

Im Neuenheimer Feld 400,

9120 Heidelberg,

Germany

 

Helios Hospital Munchen,

Steiner Way 5,

81241 Munich,

Germany