1. Department of Medicine, Kawasaki Medical School, Okayama, Japan
2. Department of Cardiovascular Medicine, and Endocrinology and Metabolism, Faculty of Medicine, Tottori University, Tottori, Japan
3. Medicine Division, Nippon Boehringer Ingelheim Co. Ltd, Tokyo, Japan
4. Global Pharmacovigilance, Boehringer Ingelheim Pharma GmbH & Co. Kg, Ingelheim, Germany