It really doesn't, sorry. I have no idea what any of that means, and I don't even understand what exactly my bone marrow does, never mind how much of it I can lose before something bad happens. I have lost blood before, like when I scraped my knee falling off a bike. I have never had my blood filtered for stem cells. Don't I need those?

And I am a college educated person. If I got through school with this level of ignorance about the bone marrow donation process, there are probably millions of other people with similar ignorance about the issue (and likely, those people are not as quick to do research, as I am doing now). I don't think a few sentences in a FAQ is enough to combat this.