R. Litt and A. Brown, Assessment of the Efficiency of Virtual Orthodontic Consultations during COVID-19. journal = {International Journal of Health and Medical Engineering}, [online]. World Academy of Science, Engineering and Technology. January 2021, vol. 169(1). 80 - 83 [viewed 27 April 2024]. Available from: https://publications.waset.org/pdf/10011763.