Reply #41: It's the parentheses - they often cause problems in URLs

[muriel_volestrangler]

You need to replace them with '%28' and '%29' (you'll often see Wikipedia links using this, for instance). It's the same idea as the '%20' that turns up in that URL too - that's a space.

Thus:
ipalc.org/Healthcare_Policy/The%20Perfect%20Storm%20of%20Overutilization%20%28JAMA%202008%29.pdf

comes out as:

http://www.ipalc.org/Healthcare_Policy/The%20Perfect%20Storm%20of%20Overutilization%20%28JAMA%202008%29.pdf

when you put the http and the www. in front of it, course)