Vitamin D Level, Respiratory Tract Infections, and Controlled Trials

  • Harri Hemilä
  • Archives of Internal Medicine, August 2009, American Medical Association (AMA)
  • DOI: 10.1001/archinternmed.2009.246

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http://dx.doi.org/10.1001/archinternmed.2009.246

The following have contributed to this page: Dr Harri Hemila