1. Dr Margarete Fischer-Bosch Institute of Clinical Pharmacology, Stuttgart; and University Tübingen, Tübingen, Germany
2. Mayo Clinic, Rochester, MN
3. Dr Margarete Fischer-Bosch Institute of Clinical Pharmacology, Stuttgart; University Tübingen; and Institute of Experimental and Clinical Pharmacology and Toxicology, University Hospital Tübingen, Tübingen, Germany