1. Nursing Department The Second Hospital Cheeloo College of Medicine Shandong University Jinan City China
2. The Nether School of Nursing The Chinese University of Hong Kong Hong Kong China
3. Department of Geriatrics Nursing Department The Second Hospital Cheeloo College of Medicine Shandong University Jinan City China
4. Department of Gastrointestinal Surgery Nursing Department The Second Hospital Cheeloo College of Medicine Shandong University Jinan City China