title: Letter by Saito Regarding Article, "Collateral Donor Artery Physiology and the Influence of a Chronic Total Occlusion on Fractional Flow Reserve".
authors.affiliation: Department of Cardiovascular Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan.
authors.forename: Naritatsu
authors.initials: N
authors.lastname: Saito
mesh_terms: D001158:Arteries / Q000502:physiology*; D054059:Coronary Occlusion / Q000175:diagnosis*; D005260:Female; D053805:Fractional Flow Reserve, Myocardial; D006801:Humans; D006940:Hyperemia / Q000175:diagnosis*; D007511:Ischemia / Q000175:diagnosis*; D008297:Male; D062645:Percutaneous Coronary Intervention; D011183:Postoperative Complications / Q000175:diagnosis*