Evaluation of insulin sensitivity in healthy volunteers treated with olanzapine, risperidone, or placebo: a prospective, randomized study using the two-step hyperinsulinemic, euglycemic clamp. - Sowell,MO.; Mukhopadhyay,N.; Cavazzoni,P.; Carlson,C.; Mudaliar,S.; Chinnapongse,S. (J Clin Endocrinol Metab, 2003)