A response to – There's madness in their methods. Issue 4 (11th April 2013) - Guyatt, G.; Eikelboom, J.; Crowther, M.; Akl, E.; Francis, C.; Garcia, D.; Gould, M.; Hylek, E.; Kahn, S.; Kunz, R.; Quinlan, D.; Vandvik, P.; et al.