Slaying little dragons: the impact of the Guinea Worm Eradication Program on dracunculiasis disability averted from 1990 to 2016 by Cromwell, EA, Roy, S, Sankara, DP, Weiss, A, Stanaway, J, Goldberg, E, Pigott, DM, Larson, H, Vollset, SE, Krohn, K, Foreman, K, Hotez, P, Bhutta, Z, Bekele, BB, Edessa, D, Kassembaum, N, Mokdad, A, Murray, CJL, Hay, SI