[1] Ludwig Maximilians Univ Munchen, Walther Straub Inst Pharmacol & Toxicol, Munich, Germany
[2] Albert Ludwigs Univ, Inst Expt & Clin Pharmacol & Toxicol, Freiburg, Germany
[3] Ludwig Maximilians Univ Munchen, Dept Pharm, Munich, Germany
[4] Univ Duisburg Essen, Inst Anat, Essen, Germany