Affiliation: | aDepartment of Epidemiology and Biostatistics, School of Public Health, Shandong University, Jinan, China;bHematology Oncology Center, Qilu Hospital, Shandong University, Jinan, China;cDepartment of Epidemiology and Statistics, Institute of Basic Medicine, Shandong Academy of Medical Sciences, Jinan, China;dSchool of Economics, Shandong University, Jinan, China |