IRIS II Study: Sensitivity and specificity of intact proinsulin, adiponectin, and the proinsulin/adiponectin ratio as markers for insulin resistance. - Langenfeld,MR.; Forst,T.; Standl,E.; Strotmann,HJ.; Lubben,G.; Pahler,S.; Kann,P.; Pfützner,A. (Diabetes Technol Ther, 2004)