[Where is the National Board of Health and Welfare?].
Torp
Claus Rydahl
CR
D003718:Denmark; D004935:Esophageal Diseases / Q000601:surgery; D016629:Esophagectomy / Q000592:standards*; D004947:Esophagus / Q000601:surgery; D017052:Hospital Mortality; D006801:Humans; D011785:Quality Assurance, Health Care