Pedersen, Lars https://orcid.org/0000-0003-2526-6094
Schiöler, L.
Finjan, S.
Davidsson, Å.
Sunnergren, O.
Holmberg, K.
Ahlström Emanuelsson, C.
Hellgren, J.
Article History
Received: 14 March 2019
Accepted: 16 April 2019
First Online: 29 April 2019
Compliance with ethical standards
:
: The authors have no conflicts of interest relevant to this article to disclose.
: This research is an observational register study, involving no contact with human participants or animals.
: Informed consent is given during the first visit at the ENT-doctor and when receiving/answering the questionnaires.