Erasmus Traineeship for medicine at UNN Tromsø

Hi everyone, I'm not really sure if someone on this sub could help me clear my doubts, but I can't find any info on the internet to answer my specific question. I Intend to undertake a Traineeship at the University Hospital of Tromsø, so I have written an email to the Secretariat of the Arctic University of Norway (UiT) to know if it would be possible to do that, but they told me that interniships are only reserved to students coming from universities that have a Cooperation Agreement of some sort with UiT and my University unfortunately does not. I have a doubt whether the University Hospital of Tromsø is a different entity from the UiT, so that I could contact them and try to see if they would accept me even if my Uni does not have an Agreement with them or if it would be utterly useless. I have tried to also look up some private clinics in Tromsø but none have a neurosurgical department, which is the unit I would like to have an interniship for. The only one is the University Hospital of Tromsø apparently. Thanks in advance.