Received: 20 March 2020
Accepted: 1 September 2020
First Online: 14 September 2020
Ethics approval and consent to participate
: The study was approved by the Regional Ethics Committee in Uppsala, Sweden in 2010-06-29 (Reg. no. 2011/220). The procedures used in this study adhere to the tenets of the Declaration of Helsinki. The participants gave their written consent by filling in and sending in the questionnaires.
: Not applicable.
: None to declare.