Received: 23 August 2018
Accepted: 13 May 2019
First Online: 23 May 2019
Ethics approval and consent to participate
: The study was approved by the regional Ethical Review Board in Stockholm in 2017 in accordance with Swedish law and regulations (Stockholm Ethical Review Board case number: 2017/1252–31/1). According to the regional Ethical Review Board ‘s decision, consent to participate was not required and therefore consent to participate was not collected.
: Not applicable.
: Not applicable, the authors of this manuscript have no conflict of interest to disclose.
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