Steve,
I was a bit disappointed when your URL led only to a form from
Nature informing me I could purchase the article for $30. Nevertheless, the editors summary is available free from
Nature at:
CLICK HEREand the first paragraph free at
CLICK HEREand probably all I
really need to know about this painful subject, including specific data and photographs, is probably in the supplementary information pdf,
which is avalable free in a pdf that can be downloaded from:
CLICK HEREOuch!!!!
Dar