Hi, does anyone have any knowledge about siblings donating bone marrow for leukaemia treatment. My dad's sister has been diagnosed and dad who is 68 is hoping that he will be a match. Whilst we know that he may not be I'm also wondering if, at his age, he would be able to donate anyway? I see that on the NHS register you have to be under 60 but I don't know if the rules are different for a family member. Does anyone have any experience of this? Thanks