New front in radiotherapy: Patients to be told to lie on their stomachs to protect their heart and lungs

Breast cancer patients are to be offered lifesaving radiotherapy while lying on their front for the first time, in an attempt to protect them from damage to the heart and lungs. The technique, known as prone radiotherapy and common practice in the US, is helpful for women with larger breasts who are harder to treat in the traditional position lying on their back.
Daily Mail