Martin, K., 2015. The Impact Opportunity. Annals of Global Health, 81(1), pp.1–2. DOI: http://doi.org/10.1016/j.aogh.2015.01.004

Martin K. The Impact Opportunity. Annals of Global Health. 2015;81(1):1–2. DOI: http://doi.org/10.1016/j.aogh.2015.01.004

Martin, K. (2015). The Impact Opportunity. Annals of Global Health, 81(1), 1–2. DOI: http://doi.org/10.1016/j.aogh.2015.01.004

Martin K, ‘The Impact Opportunity’ (2015) 81 Annals of Global Health 1 DOI: http://doi.org/10.1016/j.aogh.2015.01.004

Martin, Keith. 2015. “The Impact Opportunity”. Annals of Global Health 81 (1): 1–2. DOI: http://doi.org/10.1016/j.aogh.2015.01.004

Martin, Keith. “The Impact Opportunity”. Annals of Global Health 81, no. 1 (2015): 1–2. DOI: http://doi.org/10.1016/j.aogh.2015.01.004

Martin, K.. “The Impact Opportunity”. Annals of Global Health, vol. 81, no. 1, 2015, pp. 1–2. DOI: http://doi.org/10.1016/j.aogh.2015.01.004