The full text can be found at:
http://www.nejm.org/doi/pdf/10.1056/NEJMc1107673

The authors are quite right to point out that you have to be very careful about what you find on the web (and that includes this post). But, with great humility, let me point out that we also have to be careful about what we read in the NEJM.

It seems that the group of experts independently viewed the videos and independently made a diagnosis. These were highly correlated. Fair enough. BUT, it seems to me to be a great leap of faith to assume that where the experts disagreed with the patients (and their own doctors), they (the experts) were correct.

A better methodology would be for a second group of doctors to examine the patients normally.

However, I think use could be made of this approach: we put ourselves on You Tube and wait for a passing expert to offer a diagnosis.

John