1. Central Laboratory, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Shandong Provincial Hospital, Shandong University , Jinan 250021 , China
2. School of Life Sciences, Faculty of Science, The Chinese University of Hong Kong , Shatin, N.T. , China
3. Department of Clinical Laboratory Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Institute of Clinical Microbiology, Shandong Academy of Clinical Medicine , Jinan 250021 , China
4. Center for Reproductive Medicine, Shandong University, Key Laboratory for Reproductive Endocrinology of Ministry of Education , Jinan 250012 , China
5. Department of Infection Control, Jen Ching Memorial Hospital , Kunshan 215300 , China