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机译:Lack of a relation between serum 25-hydroxyvitamin D concentrations and asthma in adolescents
Department of Medicine, Osteoporosis Clinical Center and Research Program, University of Wisconsin;
University of Wisconsin School of Medicine and Public Health, Madison, WI, United States;
National Institute of Allergy and Infectious Diseases, Bethesda, MD, United StatesChildren's National Medical Center, Washington, DC, United StatesRho Federal Systems Division Inc., Chapel Hill, NC, United StatesJohns Hopkins University School of Medicine, Baltimore, MD, United StatesCollege of Physicians and Surgeons, Columbia University, New York, NY, United StatesWashington University, St Louis, MO, United StatesNational Jewish Health, Denver, CO, United StatesCincinnati Children's Hospital, Cincinnati, OH, United StatesBoston University School of Medicine, Boston, MA, United StatesChildren's Memorial Hospital, Chicago, IL, United StatesUniversity of Arizona College of Medicine, Tucson, AZ, United StatesUniversity of Texas Southwestern Medical Center, Dallas, TX, United States;