Esophageal Varices

• The Fifth People's Hospital of Anyang — Anyang, China
• The Secend People's Hospital of Jiaozuo — Jiaozuo, China
• Huaihe Hospital of Henan University — Kaifeng, China
• Luohe Central Hospital — Luohe, China

• Ultrasound diagnostic and interventional service "Policlinico A.Gemelli" — Roma, Italia, Italy

• CHU Amiens Picardie — Amiens, Picardie, France

• Southern Medical University Nanfang Hospital — Guangzhou, Guangdong, China
• The Third Affiliated Hospital of Sun Yat-sen University — Guangzhou, Guangdong, China
• The First Affiliated Hospital of Nanchang University — Nanchang, Jiangxi, China
• People's Liberation Army Northern Theater General Hospital — Shenyang, Liaoning, China

• Tanta University Hospitals — Tanta, Gharbyea, Egypt

• Tanta University Hospitals — Tanta, Gharbyea, Egypt

• Taipei Veterans General Hospital — Taipei, Taiwan

• Taipei Veterans General Hospital — Taipei, Taiwan

• Sherief Abd-Elsalam — Tanta, Egypt

Not specified