Gastroesophageal Reflux Disease

• Research Site — Bandol, France
• Research Site — Beaumont-sur-Oise, France
• Research Site — Beausoleil, France
• Research Site — Behren-lès-Forbach, France

Not specified

Not specified

• Research Site — Aiterhofen, Germany
• Research Site — Ansbach, Germany
• Research Site — Apolda, Germany
• Research Site — Bad Bramstedt, Germany

Not specified

• Research Site — Bjelovar, Croatia
• Research Site — Bulinec, Croatia
• Research Site — Crikvenica, Croatia
• Research Site — Daruvar, Croatia

• Research Site — Cheonan, Chungcheongnam-do, South Korea
• Research Site — Seoul, Kyungkido, South Korea
• Research Site — Sungnam, Kyungkido, South Korea
• Research Site — Suwon, Kyungkido, South Korea

• Research Site — Long Xuyen, An Giang, Vietnam
• Research Site — Qui Nhon, Binh Dinh, Vietnam
• Research Site — Buon Ma Thuot, Dac Lac, Vietnam
• Research Site — Bien Hoa, Dong Nai, Vietnam

• Research Site — Busan, South Korea
• Research Site — Daegu, South Korea
• Research Site — Daejun, South Korea
• Research Site — Kwangju, South Korea

• Research Site — Uppsala, Sweden