1. Department of Biostatistics, School of Public Health, Cheeloo College of Medicine Shandong University Jinan Shandong 250012 China
2. Healthcare Big Data Research Institute, Cheeloo College of Medicine Shandong University Jinan Shandong 250012 China
3. Center for Big Data Research in Health and Medicine The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital Jinan China
4. Shandong Qianfoshan Hospital, Cheeloo College of Medicine Shandong University Jinan China