Doerfler, Matthew D., Katie N. Truitt, Mark J. Fisher, Grant Theron, and Sally M. McFall. “A Novel Collection Cup for Tuberculosis Sputum in South Africa: Engineering Design and User Testing Considerations”. Global Health Innovation 1, no. 2 (November 28, 2018). Accessed May 3, 2024. https://journals.uct.ac.za/index.php/GHI/article/view/642.