Korpela, Taija
Ristimäki, Ari
Udd, Marianne
Vuorela, Tiina
Mustonen, Harri
Haglund, Caj
Kylänpää, Leena
Seppänen, Hanna
Article History
Received: 9 June 2021
Accepted: 29 November 2021
First Online: 3 January 2022
Declarations
:
: The Helsinki University Hospital research board approved the study design (HUS/269/2017), and this study adhered to the Declaration of Helsinki and the International Conference on the Harmonization of Good Clinical Practice. Finnish law allows for the use of medical records in medical research without necessitating the patient’s consent; hence, due to the retrospective nature of this study informed consent was not required.
: Not applicable.
: None declared.