In contrast, in a study with 120 patients with elective cardiac surgery (CPBG) and post-pump hemoglobin levels of 7–10 g/dL, postoperative IVIT used alone or in combination with low-dose erythropoietin was not found to be effective for correction of postoperative anemia, as evaluated at different time intervals until day 30 postoperatively [51]. The gene discussed is EPO; the disease is anemia (phenotype).