Gastroesophageal Reflux

• The Children's Hospital of Alabama — Birmingham, Alabama, United States
• University of Arizona Dept. of Pediatrics — Tucson, Arizona, United States
• Arkansas Children's Hospital/University of Arkansas for Medical Sciences — Little Rock, Arkansas, United States
• Kaiser Permanente Hospital- Pediatric Gastroenterology — Hayward, California, United States

Not specified

• Ironwood Investigational Site — North Little Rock, Arkansas, United States
• Ironwood Investigational Site — Anaheim, California, United States
• Ironwood Investigational Site — Monroe, Louisiana, United States
• Ironwood Investigational Site — Chesterfield, Michigan, United States

• Alabaster, Alabama, United States
• Anniston, Alabama, United States
• Birmingham, Alabama, United States
• Hueytown, Alabama, United States

• Yale New Haven Hospital — New Haven, Connecticut, United States
• VACHS — West Haven, Connecticut, United States

• Gangnam severance hospita — Seoul, South Korea

• The First Affilated Hospital Sun Yat-Sen University — Guangzhou, Guangdong, China

Not specified

• Huntsville, Alabama, United States
• Tucson, Arizona, United States
• Tucson, Arizona, United States
• Little Rock, Arkansas, United States

• Seoul National University Bundang Hospital — Seongnam-si, Gyeonggi-do, South Korea