APOB and inherited lipid metabolism disorder: The European Society of Cardiology Guidelines on the Management of Dyslipidaemia currently advocate measurements of Lp(a) and ApoB in addition to LDL-C, HDL-C, and triglycerides and acknowledge that LDL-C, non-HDL-C, and ApoB provide essentially similar information, but plasma levels of LDL-C and ApoB can be discordant in some settings.