Access to Medicine Index—what about sustainability?

James R Hargreaves, Brian Greenwood, Charles Clift, Akshay Goel, Anne Roemer-Mahler, Richard Smith, David L Heymann, Making new vaccines affordable: a comparison of financing processes used to develop and deploy new meningococcal and pneumococcal conjugate vaccines The Lancet. ,vol. 378, pp. 1885- 1893 ,(2011) , 10.1016/S0140-6736(11)60687-9

Veronika J Wirtz, Hans V Hogerzeil, Andrew L Gray, Maryam Bigdeli, Cornelis P de Joncheere, Margaret A Ewen, Martha Gyansa-Lutterodt, Sun Jing, Vera L Luiza, Regina M Mbindyo, Helene Möller, Corrina Moucheraud, Bernard Pécoul, Lembit Rägo, Arash Rashidian, Dennis Ross-Degnan, Peter N Stephens, Yot Teerawattananon, Ellen F M 't Hoen, Anita K Wagner, Prashant Yadav, Michael R Reich, Essential medicines for universal health coverage The Lancet. ,vol. 389, pp. 403- 476 ,(2017) , 10.1016/S0140-6736(16)31599-9