Möller C (The PAT investigator group). Specific immunotherapy has long-term preventive effect of seasonal and perennial asthma: 10-year follow-up on the PAT study - Jacobsen, L; Niggemann, B; Dreborg, S; Ferdousi, H A; Halken, S; Høst, A; Koivikko, A; Norberg, L A; Valovirta, E; Wahn, U (Allergy, 2007)