Karolinska Institutet, Stockholm, Sweden
Danderyds Sjukhus AB, Stockholm, Sweden
Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
Karolinska Institutet, Stockholm, Sweden
Karolinska Institutet, Stockholm, Sweden
ENT department, Skånes University Hospital Malmö and Lund, Malmö, Sweden
Allergy Unit, Södra Älvsborgs Hospital, Borås, Sweden
ENT department, Karolinska University Hospital, Stockholm, Sweden
Karolinska Institutet, Stockholm, Sweden
Karolinsk institutet, Stockholm, Sweden