Dar, F. K., Littmann, J., Rweyemamu, M., Buckley, E. J., Shahid, M., Kock, R. A., …Heymann, D. L. (2016). Exploring the evidence base for national and regional policy interventions to combat resistance. https://doi.org/10.1016/S0140-6736%2815%2900520-6