Essential Hypertension

• Hallym University Sungsim Hospital — Anyang-si, South Korea
• Inje University Busan Baik Hospital — Busan, South Korea
• Inje University Haeundae Baik Hospital — Busan, South Korea
• Yeungnam University Medical Center — Daegu, South Korea

• Hallym University Sungsim Hospital — Anyang-si, South Korea
• Inje University Busan Baik Hospital — Busan, South Korea
• Inje University Haeundae Baik Hospital — Busan, South Korea
• Yeungnam University Medical Center — Daegu, South Korea

• Department of Neurology, Wake Forest School of Medicine — Winston-Salem, North Carolina, United States

• CHUV, nephrology service — Lausanne, Canton of Vaud, Switzerland

• University of Maia — Maia, Portugal

• Appalachian Cardiovascular Associates — Fort Payne, Alabama, United States
• Radiant Research Inc — Chandler, Arizona, United States
• Warner Family Practice / Radiant Research Inc — Chandler, Arizona, United States
• Phoenix Medical Research Institute LLC — Peoria, Arizona, United States

• Xuanwu Hospital, Capital Medical University — Beijing, Beijing Municipality, China
• Peking University Care Health Management Center — Beijing, Beijing Municipality, China
• The 306 Hospital of People's Liberation Army — Beijing, Beijing Municipality, China

• University of Copenhagen — Copenhagen, Denmark

• Charite University — Berlin, Germany

Not specified