Received: 21 June 2020
Accepted: 4 November 2020
First Online: 17 November 2020
Ethics approval and consent to participate
: Not applicable
: See the submitted statements of conflict of interest. One author, MF, states that he is the founder of a company developing AR-based navigation methods. This involvement, however, is not a direct conflict of interest. The other authors declare that they have no competing interests.