Use "radiotherapy" in a sentence

1. I explained that I wore “that cap” to cover an operation scar and the loss of hair from radiotherapy – this seemed to satisfy

2. The other option would have been to send the woman to the nearby island of St Vincent, where radiotherapy was available

3. Radiotherapy would have been an acceptable approach for a more advanced cancer, but for this relatively young woman with early stage cervical cancer, a surgical procedure was much to be preferred

4. Cancer can be treated by surgery, radiotherapy (X-ray treatment) and / or cytotoxic drugs (chemotheraphy)

5. Chemo and radiotherapy kill bacteria for the same reason they kill cancerous cells