Hiatal Hernia

• Ersta Hospital — Stockholm, Sweden

• Cedars Sinai Medical Center — Los Angeles, California, United States
• SurgOne PC — Englewood, Colorado, United States
• Northwestern University — Chicago, Illinois, United States
• Ohio State University Hospital — Columbus, Ohio, United States

• Railway General hospital — Rawalpindi, Punjab Province, Pakistan

Not specified

• University of Kentucky — Lexington, Kentucky, United States
• Monmouth Medical Center — Long Branch, New Jersey, United States
• Carolinas Healthcare System — Charlotte, North Carolina, United States
• Cleveland Clinic — Cleveland, Ohio, United States

• University Hospitals Leuven — Leuven, Belgium
• University of Nantes Hospital — Nantes, France
• Karolinska University, Ersta Hospital — Stockholm, Sweden
• Karolinska University, Huddinge Hospital — Stockholm, Sweden

• Mt. Graham Regional Medical Center — Safford, Arizona, United States
• Tempe St. Luke's Hospital — Tempe, Arizona, United States
• Swedish Medical Center and SurgOne P.C. — Englewood, Colorado, United States
• Munroe Regional Hospital — Ocala, Florida, United States

• University of Washington — Seattle, Washington, United States

• Washington University School of Medicine — St Louis, Missouri, United States

• Dept. of "Surgery, Intensive Care and Organs Transplantation" — Bologna, Italy
• Department of General and Minimally Invasive Surgery -- Esophago-gastric Surgery Unit, Istituto Clinico Humanitas, Rozzano, University of Milan — Milan, Italy
• First Division of General and Gastrointestinal Surgery, Second University of Naples — Naples, Italy
• Unit of Gastrointestinal Surgery, School of Medicine, II University of Naples — Naples, Italy