Pajunen, Tuulia
Vuori, Erkki
Lunetta, Philippe
Article History
Received: 26 June 2018
Accepted: 17 September 2018
First Online: 1 November 2018
Ethics approval and consent to participate
: This study was conducted retrospectively as a register study and no ethical approval was required.
: Not applicable.
: The authors declare that they have no competing interests.
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