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Authors
Katuwal, Sushmita http://orcid.org/0000-0003-3538-6460
Tapanainen, Juha S.
Pukkala, Eero
Kauppila, Antti
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Funding
Funding for this research was provided by:
Academy of Finland (295760)
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Article History
Received: 3 May 2018
Accepted: 25 February 2019
First Online: 4 March 2019
Ethics approval and consent to participate
: This is a register-based study conducted according to Finnish regulations. It does not require permission/consent of the participants. This study has passed the ethical and privacy protection control and got the study permission from the National Institute for Health and Welfare (THL).
: Not applicable.
: The authors declare that they have no competing interests.
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