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No dose-dependent increase in fracture risk after long-term exposure to high doses of retinol or beta-carotene
This intervention study found no increase in fracture risk among 2,322 adults who took a controlled, high-dose retinol supplement for as long as 16 years.
Effect of early carriage of streptococcus pneumoniae on the development of pneumococcal protein-specific cellular immune responses in infancy
The aim of this study was to examine the relationship between nasopharyngeal pneumococcal colonization in early life and the development of T cell responses.