1. Tokyo Medical and Dental University; Department of System Management in Nursing Graduate School of Health Care Sciences; Tokyo Japan
2. Keio University; Faculty of Nursing and Medical Care; Fujisawa Japan
3. St. Luke's International University; Global Health Nursing, Graduate School of Nursing Science; 10-1 Akashi-cho Chuo-Ku Tokyo MS Japan 104-0044
4. St. Luke’s International Hospital; Cardiology; Tokyo Japan
5. Tohoku University Graduate School of Medicine; Department of Palliative Nursing, Health Sciences; Sendai Japan
6. St. Luke’s International University; Division of Biostatistics and Bioinformatics, Graduate School of Public Health; St. Luke’s Center for Clinical Academia, 5th Floor 3-6-2 Tsukiji, Chuo-Ku Tokyo Japan 1040045