EPCAM and laryngotracheoesophageal cleft: EpCAM-based immunomagnetic capture by CellSearch (Veridex) isolated 0.4 ± 0.2 at IIIA stage, 0.4 ± 0.3 at IIIB stage and 6 ± 3.6 IV stage in 7.5 mL of blood of patients with different types of LC [13].