[American Thoracic Society American Thoracic Society 2011 International Conference, May 13-18, 2011 • Denver Colorado - ()] A25. TRANSLATING ACUTE RESPIRATORY DISTRESS SYNDROME AND VENTILATOR INDUCED LUNG INJURY: MECHANISMS TO OUTCOMES - Lower 25-OH Vitamin D Levels And Vitamin D Binding Protein Gene Polymorphisms Are Associated With Mortality Among Adults Admitted To Intensive Care Unit With Severe Pneumonia