Response to Schmidt et al.: Antimicrobial surfaces – huge potential, significant uncertainty. Issue 3 (November 2018) - ,; Callery, S.; Ciccotelli, W.; Cividino, M.; Hota, S.; Garber, G.; Johnstone, J.; Katz, K.; Nankoosingh, V.; Muller, M.P.; MacDougall, C.; Lim, M.