Biliary Tract Diseases

• Royal Surrey County Hospital — Guildford, Surrey, United Kingdom

• Xijing Hospital of Digestive Diseases — Xi'an, Shaanxi, China

• Sahlgrenska University Hospital/Östra — Gothenburg, Sweden
• Skövde Kärnsjukhus — Skövde, Sweden

• Baystate Medical Center — Springfield, Massachusetts, United States

• Stanford University School of Medicine — Stanford, California, United States

Not specified

• The Ohio State University Wexner Medical Center — Columbus, Ohio, United States

• Vanderbilt-Ingram Cancer Center — Nashville, Tennessee, United States

• Montreal General Hospital — Montreal, Quebec, Canada

• Montefiore Medical Center — The Bronx, New York, United States