Treatment Group 3, 4 and 5 will start their treatment and be measured at session 2 (T6) in mid-September, and Treatment Group 1 and 2 will also be measured at this point. Treatment Group 3, 4 and 5 will then be measured at treatment session 4,6 and 7, just like treatment Group 1 and 2 was during their treatment. (From now on T7, T8, T9). Treatment Groups 1 and 2 will also be measured at T9.