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. 2021 Oct 20;8:739633. doi: 10.3389/fcvm.2021.739633

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Copyright © 2021 Zhang, Han, Tan, Chai, Fam, Teo, Chin, Ong, Low, Chandola, Leng, Huang, Allen, Baskaran, Kassab, Low, Chan, Chan, Loh, Wong, Tan, Chua, Lim and Zhong.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Comparison of the receiver operating characteristic curves for the discrimination of myocardial ischemia (fractional flow reserve, FFR ≤0.8) using diameter stenosis (DS; DS_CTCA and DS_ICA, with a threshold of 70%) and non-invasive FFR (FFR_AM and FFR_B) on (A) per-vessel and (B) per-patient levels.