After the patients have given written informed consent, they are put on a wait-list for block randomization until there is a total of 14 patients. When 14 patients have answered the 2. online questionnaire, they are randomized to 2 groups; group therapy (n=7), starting shortly after randomization, or wait-list (n=7) with an offer to start group therapy after 9 months. Patients are randomized by means of a computer algorithm that use predefined concealed random numbers.