Hosein, Mervyn, Ayesha Hanif, Haroon Rashid Baloch, and Saima Quraeshi. “Fighting Airborne Spread of COVID-19: An Innovative, Economical and Effective High Vacuum Extra Oral Dental Suction System (HVEDS) for Dental Practices”. International Journal of Applied Sciences: Current and Future Research Trends 10, no. 01 (September 22, 2021): 36–43. Accessed April 24, 2024. https://ijascfrtjournal.isrra.org/index.php/Applied_Sciences_Journal/article/view/1133.