Correction to: Clinical Value of Using Heart Rate Variability Biofeedback Before Elective CT Coronary Angiography to Reduce Heart Rate and the Need for BetaBlockers. - Langguth, Patrick; Wolf, Carmen; Sedaghat, Sam; Huhndorf, Monika; Frank, Johanne; Both, Marcus; Jansen, Olav; Salehi Ravesh, Mona; Lebenatus, Annett (Applied Psychophysiology & Biofeedback, 2023)