Jansson, Anu http://orcid.org/0000-0001-6531-2054
Pitkälä, Kaisu http://orcid.org/0000-0001-9659-6985
Article History
Received: 27 January 2021
Accepted: 2 February 2021
First Online: 17 February 2021
Compliance with ethical standards
:
: On behalf of all authors, the corresponding author states that there is no conflict of interest.
: The study was approved by the local ethics committee and has therefore been performed in accordance with the ethical standards laid down in the 1964 Declaration of Helsinki and its later amendments.
: Informed consent was obtained from all the participants.
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