The Mayo clinic provides good introductionary descriptions: http://www.mayoclinic.org/diseases-conditions/urethral-stricture/basics/definition/con-20037057
But even if you are not versed in reading, if you want to learn about new developments read original papers. If there are obstacles there a LW help desk
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
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