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机译:Estimating mean annual 25-hydroxyvitamin D concentrations from single measurements: The Multi-Ethnic Study of Atherosclerosis
University of Vermont College of Medicine, Burlington, VT, United States;
University of California, San Diego School of Medicine, San Diego, CA, United States;
Los Angeles Biomedical Research Institute, Los Angeles, CA, United StatesDivision of Biostatistics, College of Public Health, Ohio State University, Columbus, OH, UnitedKidney Research Institute, Division of Nephrology, University of Washington, Seattle, WA, UnitedDepartment of Epidemiology, University of Minnesota, Minneapolis, MN, United States;