1. Department of Information Physiology, National Institute for Physiological Sciences, Okazaki, Aichi 444‐8585, Japan
2. Division of Clinical Pharmacology, First Department of Internal Medicine, Imre Haynal University of Health, Budapest H‐1335, Hungary
3. Institute of Molecular Pharmacology and Biophysics, University of Cincinnati College of Medicine, Cincinnati, OH 45267‐0828, USA