1. Rosen CJ. Clinical practice. Vitamin D insufficiency. N Engl J Med. 2011; 364:248–54.
2. Choi HS, Oh HJ, Choi H, Choi WH, Kim JG, Kim KM, et al. Vitamin D insufficiency in Korea--a greater threat to younger generation: the Korea National Health and Nutrition Examination Survey (KNHANES) 2008. J Clin Endocrinol Metab. 2011; 96:643–51.
Article
3. Kim HJ, Sohn MS, Choi EY. Prevalence and related factors of vitamin D deficiency in critically Ill patients. Korean J Crit Care Med. 2016; 31:300–7.
Article
4. Ala-Kokko TI, Mutt SJ, Nisula S, Koskenkari J, Liisanantti J, Ohtonen P, et al. Vitamin D deficiency at admission is not associated with 90-day mortality in patients with severe sepsis or septic shock: observational FINNAKI cohort study. Ann Med. 2016; 48:67–75.
Article
5. Upala S, Sanguankeo A, Permpalung N. Significant association between vitamin D deficiency and sepsis: a systematic review and meta-analysis. BMC Anesthesiol. 2015; 15:84.
Article
6. Dancer RC, Parekh D, Lax S, D’Souza V, Zheng S, Bassford CR, et al. Vitamin D deficiency contributes directly to the acute respiratory distress syndrome (ARDS). Thorax. 2015; 70:617–24.
Article
7. Bjelakovic G, Gluud LL, Nikolova D, Whitfield K, Krstic G, Wetterslev J, et al. Vitamin D supplementation for prevention of mortality in adults. Cochrane Database Syst Rev. 2014; (6):CD007470.
Article
8. Han JE, Jones JL, Tangpricha V, Brown MA, Brown LA, Hao L, et al. High dose vitamin D administration in ventilated intensive care unit patients: a pilot double blind randomized controlled trial. J Clin Transl Endocrinol. 2016; 4:59–65.
Article