TY - JOUR KW - serum cholesterol AU - Barzi Federica AU - Woodward Mark AN - 15229115 BT - American Journal of Epidemiology CN - Y LA - eng LB - epidemiologyjournal M1 - 1 PY - 2004 SE - 5.285 SP - 34 EP - 45. [Impact Factor 5.285 ] ST - Am. J. Epidemiol. T2 - American Journal of Epidemiology TI - Imputations of missing values in practice: results from imputations of serum cholesterol in 28 cohort studies VL - 160 ER -