Measurement of Absolute Coronary Blood Flow and Microvascular Resistance: A New Window to Coronary Microcirculation.

Competing Interests: Funding Support and Author Disclosures Dr. Pijls has received institutional research grants not related to the subject of this paper from Abbott and Hexacath; has served as a consultant for Abbott and Opsens; and has minor equity in Philips, ASML, HeartFlow, and General Electric. All other authors have reported that they have no relationships relevant to the contents of this paper to disclose.