Ethical approval

We confirm that we have read the Journal’s position on issues involved in ethical publication and affirm that this work is consistent with those guidelines. “The authors confirm that the approval of an institutional review board was not required for this work.” However, informed consent was obtained and is being submitted with the manuscript.

Disclosures

The authors declare that there are no additional disclosures to report.

Conflicts of interest

The authors declare no conflicts of interest relevant to this work.