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
BUP CPF, Stockholm, Sweden
Karolinska Institutet, Stockholm, Sweden
Karolinska insititute, Stockholm, Sweden
Peking University, Beijing, China
Karolinska University Hospital, Stockholm, Sweden
Karolinska Institutet, Stockholm, Sweden
Pascale Tinguely, Bern, Switzerland
University Medical Centre, Groningen, Netherlands
Karolinska Institutet, Dept of Surgery at Danderyd Hospital, Stockholm,, Sweden
Växjö Hospital, Växjö, Sweden
Falun Hospital, Falun, Sweden
Östra Hospital Gothenburg University, Göteborg, Sweden
Karolinska Intitutet, Stockholm, Sweden