title: Letter by Savas and Kalay Regarding Article, "Invasive Evaluation of Patients With Angina in the Absence of Obstructive Coronary Artery Disease".
authors.affiliation: Department of Cardiology, Erciyes University School of Medicine, Kayseri, Turkey.
authors.forename: Goktug
authors.initials: G
authors.lastname: Savas
authors.affiliation: Department of Cardiology, Erciyes University School of Medicine, Kayseri, Turkey.
authors.forename: Nihat
authors.initials: N
authors.lastname: Kalay
mesh_terms: D000787:Angina Pectoris / Q000000981:diagnostic imaging*; D017023:Coronary Angiography / Q000592:standards*; D003324:Coronary Artery Disease; D003326:Coronary Circulation / Q000502:physiology*; D005260:Female; D053805:Fractional Flow Reserve, Myocardial / Q000502:physiology*; D006801:Humans; D008297:Male; D018084:Ultrasonography, Interventional / Q000592:standards*