Erratum: Bioactive Sr2+/Fe3+co-substituted hydroxyapatite in cryogenically 3D printed porous scaffolds for bone tissue engineering (Biofabrication (2021) 13 (035007) DOI: 10.1088/1758-5090/abcf8d)

Abstract

Following publication of the paper, two inadvertent mistakes were noticed in figures 3(c) and 6(c). The graphs describing the effects of Sr2.5Fe7.5HA group on migration of MC3T3 cells for 24 h in figure 3(c) and Sr7.5Fe2.5HA group on migration of MC3T3 cells for 12 h in figure 6(c) were incorrect and thus replaced by the correct graphs as shown below. The rest of the figures are identical to the published version and the figure legends are not changed. The changed images do not affect the statistic results and conclusions of the published paper. We sincerely apologize for the inadvertent mistakes and for any inconvenience that it has caused.