thanks for link wil check it out cheers
Here is a link to an excellent site Janis and friends. Here you can read about all the different types of scoring
http://janis7hepc.com/biopsies.htm#scoring%20and%20grading%20biopies
http://hepatitis.about.com/od/diagnosis/a/Metavir.htm
It has nothing to to with Europe or the US. There are different ways of scoring, Metavir goes from A0 / F0 to A4 / F4 and Ishak scoring goes from 1 to 6 (if I'm not mistaken).
It depends what system your doctor uses.
Here in Denmark, as well as in France, they usually use the Metavir system.