HI RosaN
Welcome to the forum. I'm sorry to hear about your dad. If you live in Australia, you can call Cancer Counci's telephone support line - 13 11 20. This telephone line is open Monday to Friday from 9-5, its manned by Allied Health worker who all have a lot of knowledge around different cancers and the treatments. They may be able to answer your question, or point you in the right direction.
If you're not in Australia, ask the doctor who is treating your father for information, You can also ask your them, to recommend a good reliable place to go for information, to help with any clinical questions you have in the future.
It's always worth going back to the team who provided the treatment and ask them to answer your question.
I hope you get the information you need.
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