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Lesions extend counter-current to normal venous flow..

Posted: Thu Mar 07, 2013 10:25 am
by Ernst
Hello,

I have seen this sentence quite many times.. and wondered that what does it exactly mean. I have an idea/though about it (like Dawson's fingers?), but want to understand it correctly. Can someone define it precisely, like telling it to 6 yr old :) Or can I read more about this somewhere in the net.