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Figure 3 Location of the minimal luminal diameter at six months follow-up (±4 weeks) in patients with >50% diameter stenoses in relation to the dose-based sub-segments. Four instances of late total occlusion (LTO) were documented at the time of the angiographic follow-up, and two occurred later. EIRS = effective irradiated segment; IRS = irradiated segment; VS = vessel segment.
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