Doerfler, M.D., Truitt, K.N., Fisher, M.J., Theron, G. and McFall, S.M. 2018. A novel collection cup for tuberculosis sputum in South Africa: engineering design and user testing considerations. Global Health Innovation. 1, 2 (Nov. 2018). DOI:https://doi.org/10.15641/ghi.v1i2.642.