`  Actually, Rob is right (and I didn't even realise it until he pointed it out!) The 47% figure comes from patients who did not fulfill the criteria for CFS in the first place. So out of all the referrals, 47% of 40% (i.e. 18.8%) had a chronic disease condition that explained the fatigue. But as Rob points out, none of those patients were ever diagnosed with CFS in the first place! So apart from everything else, your edit ``47% of Fukuda criteria chronic fatigue patients have missed chronic disease`` is a misrepresentation of the source.  It may be worth mentioning this somewhere in the article or one of the sub-articles, but not in the lede and certainly not the way you have done it by misrepresenting (or misunderstanding) the source.   `