[1
]
Department of Surgery, Danderyd Hospital, Karolinska Institutet, Stockholm, Sweden.
ulf.o.gustafsson@ds.se.
[2
]
Department of Clinical Sciences, Danderyd Hospital, Karolinska Institutet, Stockholm,
Sweden. ulf.o.gustafsson@ds.se.
[3
]
Department of Clinical Sciences, Danderyd Hospital, Karolinska Institutet, Stockholm,
Sweden.
[4
]
Department of Surgery, Ersta Hospital, Karolinska Institutet, Stockholm, Sweden.
[5
]
Department of Surgery, Örebro University and University Hospital, Örebro & Institute
of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden.