Signs and Symptoms, Digestive

• Sunbelt Research Group — Mobile, Alabama, United States
• Arkansas Primary Care Clinic — Little Rock, Alaska, United States
• Radiant Research — Chandler, Arizona, United States
• Radiant Research - Scottsdale — Scottsdale, Arizona, United States

• All India Institute of Medical Sciences — New Delhi, India
• Deen Dayal Upadhyaya Hospital — New Delhi, India

• GSK Investigational Site — Capital Federal, Buenos Aires, Argentina
• GSK Investigational Site — Buenos Aires, Argentina
• GSK Investigational Site — Salzburg, Austria
• GSK Investigational Site — Vienna, Austria

• Breast Clinic. Oncologic Institute of Jalisco — Guadalajara, Jalisco, Mexico
• Research Unit in Clinical Epidemiology, Specialties Hospital. Mexican Institute of Sociaql Security — Guadalajara, Jalisco, Mexico

• National Taiwan University Hospital, Yun-Lin Branch — Douliu, Yun-Lin, Taiwan

Not specified

• Akdeniz University — Antalya, Turkey (Türkiye)

Not specified

• Columbia Univ School of Nursing / Center for AIDS Research — New York, United States

• Jeffrey L. Newman — Vista, California, United States