Gastroenteritis

• The Affiliated Beijing Chao-yang Hospital of Capital Medical University — Beijing, China
• Peking University First Hospital — Beijing, China
• China-Japan Union Hospital of Jilin University — Changchun, China
• The Third Affiliated Hospital of The Third Military Medical University of Chinese PLA — Chongqing, China

• Pfizer Investigational Site — Scottsdale, Arizona, United States
• Pfizer Investigational Site — La Jolla, California, United States
• Pfizer Investigational Site — Los Angeles, California, United States
• Pfizer Investigational Site — Los Angeles, California, United States

• Medical University Vienna — Vienna, Austria
• Hôpital Claude Huriez — Lille, France
• Hôpital de l'Archet 2 — Nice, France
• Universitätsklinikum Schleswig-Holstein Campus Kiel — Kiel, Germany

• Odense University Hospital — Odense, Denmark

• 1 — Prague, Czechia
• 2 — Amiens, France
• 3 — Caen, France
• 4 — Clichy, France

• Delta Research Partners LLC — Monroe, Louisiana, United States
• Walter Reed National Military Medical Center — Bethesda, Maryland, United States
• Clinical Research Institute of Michigan — Chesterfield Township, MI 48047, Michigan, United States
• Ehrhardt Clinical Research, LLC — Belton, Missouri, United States

• University of Guanajuato School of Medicine — León, Guanajuato, Mexico

Not specified

• Johns Hopkins Bloomberg School of Public Health, CIR — Baltimore, Maryland, United States

• University of Calgary /ID# 144032 — Calgary, Alberta, Canada
• Zeidler Ledcor Centre /ID# 145973 — Edmonton, Alberta, Canada
• Columbia Gastro Mgmnt Ltd /ID# 136820 — New Westminster, British Columbia, Canada
• GIRI Gastrointestinal Research Institute /ID# 141107 — Vancouver, British Columbia, Canada