The United States <a href=" http://janematthewsdesign.com/where-to-buy-rogaine-foam-in-singapore.pptx#rise ">should i use rogaine on my face</a> LONDON, Oct 16 (Reuters) - European shares retreated frommulti-year highs on Wednesday, with luxury goods stocks amongthe worst performers, as uncertainty over the U.S. debt ceilingcaused some traders to look to sell out for a profit.