Nissi, Ritva
Santala, Markku
Talvensaari-Mattila, Anne
Article History
Received: 6 September 2020
Accepted: 6 January 2021
First Online: 22 January 2021
Ethics approval and consent to participate
: The Ethical Committee of North Ostrobothnia´s Hospital (PPSHP, 3358298) has approved this study. Samples were taken in accordance with the Helsinki Declaration. Before participation, written informed consent was taken from all patients.
: Not applicable.
: Authors declare no competing interest.