[1] Univ Wurzburg, Dept Dermatol, D-97080 Wurzburg, Germany
[2] Klinikum Augsburg, Dept Neurol, Augsburg, Germany
[3] Global Hlth Outcomes Res, Irvine, CA USA
[4] Univ S Carolina, Dept Pharm, Columbia, SC 29208 USA
[5] European Hlth Econ Unit, High Wycombe, Bucks, England