title: Reply to: Phenotypic plasticity of human umbilical vein endothelial cells.
authors.forename: Andrew C
authors.initials: AC
authors.lastname: Browning
authors.forename: Elizabeth Anne
authors.initials: EA
authors.lastname: Stewart
authors.forename: Winfried M
authors.initials: WM
authors.lastname: Amoaku
mesh_terms: D042783:Endothelial Cells / Q000502:physiology*; D020869:Gene Expression Profiling; D006801:Humans; D009389:Neovascularization, Pathologic / Q000235:genetics*; D012171:Retinal Vessels / Q000502:physiology*