1. Department of Rehabilitation Medicine I, School of Medicine, Fujita Health University, Aichi, Japan;
2. Department of Rehabilitation Medicine, Tokai University School of Medicine, Kanagawa, Japan;
3. Department of Rehabilitation Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan;
4. Department of Rehabilitation Medicine, The Jikei University School of Medicine, Tokyo, Japan;
5. Tohoku University Hospital, Miyagi, Japan;
6. Tokushima University Hospital, Tokushima, Japan;
7. Merz Pharmaceuticals GmbH, Frankfurt am Main, Germany