Acknowledgements
We would like to thank the following authors who responded to our requests for information: Dr Elizabeth T. Cirulli, Dr. Amiel Dror, Dr Yvonne Goërtz, Dr Leila Karimi, Dr Mehran Karimi, Dr Jerome R. Lechien, Dr Davide Pisani, Dr Haitham Saeed, and Dr Saee Savtale.
Disclosure statement
No potential conflict of interest was reported by the author(s).