Gastroesophageal Reflux Disease (GERD)

• IRCCS Policlinico San Martino — Genova, Italy
• IRCCS Ca' Granda Ospedale Maggiore Policlinico Foundation — Milan, Italy
• AOU Federico II di Napoli — Naples, Italy
• Azienda Ospedale Università Padova — Padova, Italy

• Indiana University Health University Hospital — Indianapolis, Indiana, United States

• Department of Cardiothoracic Surgery — Pittsburgh, Pennsylvania, United States

• Klinikum Friedrichshafen GmbH — Friedrichshafen, Germany
• Ospedale IRCCS Saverio De Bellis — Bari, Italy
• Ospedale Buon Consiglio Fatebenefratelli — Naples, Italy
• Akershus Universitetssykehus HF — Lørenskog, Norway

• Theodore Billiharz Institute for Researchs — Giza, Egypt

Not specified

Not specified

• Shenzhen Hospital of Southern Medical University — Shenzhen, Guangdong, China

• Seoul National University Hospital — Seoul, South Korea

• Universidade Federal de Pernambuco — Recife, Pernambuco, Brazil