Patients who suffer from osteoarthritis and who alsohavea meniscal tear represent achallenge to medical providers because it is often not clear which condition is more adversely contributing to pain as well as their disability.
The Ospreys havealso failed to mount achallenge for this season's Magners League title and there is much speculation about Jones's future in The Liberty Stadium hot seat.
You have done a nice job of describing how one type of manic episode looks, but in suggesting that what you see might be a temper tantrum you havealso identified the challenge that faces us every time we try to give a name to psychiatric troubles.
If the game does include a physical element like Skylanders they alsohave the challenge of working with existing Disney franchises (each with their distinct art style) whereas Activision had a clean slate.
Without question, patients would alsohavea range of views here, and the real challenge going forward is refining our approach to regulation to more effectively preserve patient choice.
Villa also felt they should have had a penalty when Ashley Young went down under achallenge from Nathaniel Clyne after running on to Petrov's neat through ball.
It will likely alsohavea severely chilling effect on the willingness of policy-makers rigorously to challenge, and thereby to improve, the quality of the intelligence they are getting about tomorrow's threats.
In different ways, the tragedy in Kosovo has also been achallenge to the allies' declared common values, which have always been viewed with a certain scepticism in places beyond Europe and North America.