Sun, Yilun, Alexandra Mercader, and Tim C. Lueth. “Design of 3D-Printable Nasopharyngeal Swabs in Matlab for COVID-19 Testing”. Transactions on Additive Manufacturing Meets Medicine 2, no. 1 (September 9, 2020). Accessed April 18, 2024. https://www.journals.infinite-science.de/index.php/ammm/article/view/462.