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Monthly or annual bolus doses of vitamin D have been reported to be harmful rather than beneficial, increasing falls and fractures. In this Perspectives, J. Christopher Gallagher proposes that the vitamin D dose recommended by the Institute of Medicine be revised downwards.
In this Perspectives article, Paul Zimmet and colleagues outline how current estimates of the prevalence diabetes mellitus and of related mortality are imprecise. They call for international consensus on uniform standards and criteria for reporting national data on diabetes mellitus.
