This article refers to:
Ruyter EI, Vajeeston N, Knarvang T, et al. A novel etching technique for surface treatment of zirconia ceramics to improve adhesion of resin-based luting cements. 2017;3:36–46.
https://doi.org/10.1080/23337931.2017.1309658
When the above article was first published online, there were some errors in the Figure 8 which have now been corrected in both online and print version.