Experimental Factor Ontology identifier EFO_0009221 (Hemoglobin Lepore to Total Hemoglobin Ratio Measurement) is the determination of the ratio of hemoglobin Lepore compared to total hemoglobin present in a sample. The measurement may be expressed as a ratio or percentage. [ NCI ]. Also known as: HBLEPRHB, Hemoglobin Lepore/Total Hemoglobin.