Hypertension Resistant to Conventional Therapy

• Middelheim Hospital — Antwerp, Belgium
• Ziekenhuis Oost--Limburg — Genk, Belgium
• Universitatklinikum — Bonn, Germany
• Cardiovascular Center Sankt Katharinen — Frankfurt, Germany

• CIC Hopital europeen george pompidou — Paris, France

• Krankenhaus der Elisabethinen — Linz, Austria
• Medical University Vienna — Vienna, Austria
• Clinica Tabancura — Santiago, Chile
• Hospital Dr. Sotero del Rio — Santiago, Chile

• Hannover Medical School — Hanover, LSX, Germany

Not specified

• 2ndChongqingMU — Chongqing, Chongqing Municipality, China

• Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences — Beijing, Beijing Municipality, China

• CardioVascular Center Frankfurt — Frankfurt am Main, Hesse, Germany

• University Hospital of North Norway — Tromsø, Norway

• National Obesity Centre, Yaounde Central Hospital — Yaoundé, Centre Region, Cameroon