Falco, Michał, et al. “Deep Inspiration Breath Hold Reduces the Mean Heart Dose in Left Breast Cancer Radiotherapy: DIBH in Breast Radiotherapy”. Radiology and Oncology, vol. 55, no. 2, Apr. 2021, pp. 212-20, https://www.radioloncol.com/index.php/ro/article/view/3569.