P.S. Is there any chance that you could help to expand it a bit; it would be nice if, right at the start, it provided a more plain statement of what, exactly, the thing is - before getting into the more technical aspects; currently, it's a bit hard for non-specialists to understand. I've been looking at the articles here, and here - perhaps more could be said about the medical side of things, re. tumors?

If the article could be made just a little longer, it could qualify for a "did you know..." entry, and would appear on the main page. Currently it is about 1000Kb of text; it would need to be more than 1500 - and the entries have to be articles created within the past 5 days.

Please let me know on my talk page, if interested. Thanks,  ►