title: Effect of tissue heterogeneity on quantification in position emission tomography: reply.
authors.forename: G
authors.initials: G
authors.lastname: Blomqvist
authors.forename: A A
authors.initials: AA
authors.lastname: Lammertsma
authors.forename: B
authors.initials: B
authors.lastname: Mazoyer
authors.forename: K
authors.initials: K
authors.lastname: Wienhard
mesh_terms: D006801:Humans; D008954:Models, Biological; D014055:Tomography, Emission-Computed