1. Department of Clinical Laboratory Shandong Provincial Hospital Affiliated to Shandong First Medical University Jinan Shandong P. R. China
2. Jinan Hospital Jinan Shandong P. R. China
3. Department of Ultrasound Shandong Provincial Hospital Affiliated to Shandong First Medical University Jinan Shandong P. R. China
4. Department of Cardiology Shandong Provincial Hospital Affiliated to Shandong First Medical University Jinan Shandong P. R. China