title: Evidence synthesis assumes additivity on the scale of measurement: response to "Rank reversal in indirect comparisons" by Norton et al.
authors.forename: Gert
authors.initials: G
authors.lastname: van Valkenhoef
authors.forename: A E
authors.initials: AE
authors.lastname: Ades
mesh_terms: D006801:Humans; D015233:Models, Statistical; D012107:Research Design