1. Department of Gerontological Nursing/Wound Care Management, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.
2. Department of Advanced Nursing Technology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.
3. Global Nursing Research Centre, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.
4. Department of Life Support Technology (Molten), Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.
5. The University of Tokyo Hospital, Tokyo, Japan.