Nidal , Elmoutawakkil, Seffar Alae-Eddine, Elmoutawakkil Dalal, Hacib Nabil, and Bellemkhannate Samira. “3D PRINTING OF A LOWELL MAKES MASK IN PLA”. Medical Science of Ukraine (MSU) 17, no. 3 (September 30, 2021): 110-116. Accessed August 9, 2022. https://msu-journal.com/index.php/journal/article/view/310.