[1] Heidelberg Univ, Med Fac Mannheim, Dept Anesthesiol, Mannheim, Germany
[2] Univ Appl Sci Mannheim, Inst Mol Cell Biol, Mannheim, Germany
[3] Heidelberg Univ, Med Fac Mannheim, Dept Dermatol Expt Dermatol Venerol & Allergol, Mannheim, Germany
[4] Johns Hopkins Univ, Dept Neurosurg, Baltimore, MD USA