TY - JOUR TI - Analytical performance of a direct assay for LDL-cholesterol: a comparative assessment versus Friedewald’s formula AU - Türkalp, I. AU - Çil, Z. AU - Özkazanç, D. JO - The Anatolian Journal of Cardiology PY - 2005 VL - 5 SP - 13 EP - 17 DO - ER -