European journal of internal medicine
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Eur. J. Intern. Med. · Feb 2014
Observational StudyVitamin D status and seasonal changes in plasma concentrations of 25-hydroxyvitamin D in office workers in Ankara, Turkey.
Lack of sun exposure is one of the primary causes of epidemic vitamin D deficiency worldwide. The aim of this study was to investigate vitamin D status and seasonal changes in summer and winter in office workers. ⋯ Vitamin D deficiency is very prevalent in office workers even in summer time and this should be accepted as a public health problem.