1. Practicum Clinical Skills Centre, Skåne University Hospital, Lund, Sweden;
2. Department of Clinical Sciences, Surgery, Lund University, Skåne University Hospital, Lund, Sweden;
3. Department of Clinical Sciences, Surgery, Lund University, Skåne University Hospital, Malmö, Sweden;
4. Department of Clinical Sciences, Paediatrics, Lund University, Skåne University Hospital, Lund, Sweden