Carpén, Timo http://orcid.org/0000-0003-0117-8559
Sorsa, Timo http://orcid.org/0000-0001-7914-3052
Jouhi, Lauri http://orcid.org/0000-0003-1354-8027
Tervahartiala, Taina http://orcid.org/0000-0001-8817-896X
Haglund, Caj http://orcid.org/0000-0003-0456-4965
Syrjänen, Stina http://orcid.org/0000-0003-0738-5698
Tarkkanen, Jussi http://orcid.org/0000-0002-5807-1085
Mohamed, Hesham http://orcid.org/0000-0002-9044-366X
Mäkitie, Antti http://orcid.org/0000-0002-0451-2404
Hagström, Jaana http://orcid.org/0000-0001-6079-7881
Mattila, Petri S. http://orcid.org/0000-0003-1911-1811
Funding for this research was provided by:
Ida Montinin Säätiö
The Finnish Otorhinolaryngology – Head and Neck Surgery (ORL-HNS) Foundation
Helsingin Yliopiston Tiedesäätiö
Finska Läkaresällskapet
Article History
Received: 31 October 2018
Accepted: 17 June 2019
First Online: 25 June 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: The Research Ethics Board of the Hospital District of Helsinki and Uusimaa, Finland approved the study design (Dnr: 51/13/03/02/2013) and an institutional study permission was granted. All applicable ethical guidelines and legislation were followed, and the study design complies with the Declaration of Helsinki.
: Informed consent was obtained from all participants included in the study. Informed consent included the permission to take blood samples. Additionally, it included permission to use the blood samples and tumor samples of the participants for further analyses and research purposes.