Comparison of prevalence of uncovered struts between ZES and EES groups. Comparison of prevalence of uncovered struts between ZES and EES groups. Scatter plot of uncovered stent strut (%) as assessed by OCT between EES group and ZES group. No significance seen as evaluated using Mann-Whitney U test and data shown as median±IQR. EES, everolimus-eluting stent; OCT, optical coherence tomography; ZES, zotarolimus-eluting stent. Stephen Hamshere et al. Open Heart 2018;5:e000705 ©2018 by British Cardiovascular Society