Kemp, Kirsi
Alakare, Janne
Kätkä, Minna
Lääperi, Mitja
Lehtonen, Lasse
Castrén, Maaret
Article History
Received: 29 September 2021
Accepted: 1 March 2022
First Online: 26 March 2022
Declarations
:
: The Ethics Committee of the Helsinki University Hospital approved the study protocol and data collecting (reference number HUS/2678/2017). Both Helsinki University Hospital (reference number HUS/280/2019) and Tampere University Hospital (reference number RI8602) approved data collection. The ethical board did not require obtaining consent from patients for this observational study. All methods were performed in accordance with the declaration of Helsinki.
: Not applicable.
: The authors report no competing interests.