1. Central Laboratory, Institute of Medical Science, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, P.R. China
2. Department of Obstetrics, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, P.R. China
3. Department of Medical Oncology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, P.R. China
4. Department of Respiratory Medicine, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, P.R. China
5. Department of Neurology, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, P.R. China