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Gert Richardt has received institutional research grants from St. Jude Medical, Biotronik, and Medtronic. Gert Richardt is an Editorial Board member of Cardiology and Therapy. Gert Richardt was not involved in the selection of peer reviewers for the manuscript nor any of the subsequent editorial decisions. Ralph Toelg has received speakers\u2019 honoraria from Biotronik. Mohamed Samy, Ahmad Alali, Oleg Schiopu, Karim Elbasha, Felix Hofmann, Abdelhakim Allali, Mohammed Saad, Danial Amoey, Derk Frank, Martin Landt, Arief Kurniadi, Stephan Fichtlscherer, and Holger Nef have no relevant financial or non-financial interests to disclose.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Conflict of Interest"}},{"value":"Data from this work were derived from a prospective registry (The Prospective Segeberg Registry for Rotational Atherectomy in Coronary Lesion\/s; ClinicalTrials.gov Identifier: NCT04011527).\u00a0The study was performed in accordance with the ethical standards as laid down in the 1964 Declaration of Helsinki and its later amendments.\u00a0The present study was approved by the ethics committee of Schleswig\u2013Holstein medical syndicate (IRB reference number: 168-11). All patients included in this study have provided written consent for participation in this local prospective registry and for a systematic follow-up.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethical Approval"}}]}}