In-Hospital and 1-Year Outcomes of Octogenarian and Nonagenarian Patients with Severely Calcified Coronary Lesions Treated with Rotational Atherectomy. - Samy, Mohamed; Alali, Ahmad; Schiopu, Oleg; Elbasha, Karim; Hofmann, Felix; Allali, Abdelhakim; Saad, Mohammed; Amoey, Danial; Frank, Derk; Landt, Martin; Kurniadi, Arief; Toelg, Ralph; et al. (Cardiology & Therapy, 2026)