Affiliation: | 1. Department of Surgery, University Medical Center Groningen, Groningen, The Netherlands 2. Department of Surgery, Erasmus Medical Center Rotterdam, Rotterdam, The Netherlands 3. Department of Surgery, Medical Center Leeuwarden, Leeuwarden, The Netherlands 4. Postgraduate School of Medicine, University Groningen, Groningen, The Netherlands 5. Nuffield Department of Surgical Sciences, University of Oxford, Oxford, UK 6. Department of Surgery, David Geffen School of Medicine at UCLA and Lichtenstein Amid Hernia Clinic at UCLA, Los Angeles, CA, USA
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