CD4 and Hyponatremia: Coronary Artery Disease Drug related:cocaine, AZT, IL-2, doxorubicin, interferonInfectious:HIV, toxo-plasma, coxsackievirus group B, EBV, CMV, adenovirusMetabolic or endocrine:Selenium or carnitine deficiency, anaemia, hypocalcemia, hypophosphatemia, hyponatremia, hypokalemia, hypoalbuminemia, hypothyroidism, growth hormone deficiency, adrenal insufficiency, hyperinsulinemiaCytokines:TNF-α, nitric oxide, TGF-β, endothelin-I, interleukinsImmunodeficiency:CD4 <100Autoimmune