GPC3 and laryngotracheoesophageal cleft: The postoperative plasma GPC3 level in pre-GPC3 positive LC patients(n=5) was relatively higher than that in non-LC patients(n=5) (median, 248.7 ng/mL; mean, 519.6 ± 679.5 ng/mL; range, 124.7–1729.3 ng/mL vs. median, 175.4 ng/mL; mean, 188.4± 163.4 ng/mL; range, 43.6–460.1 ng/mL), but there was no significant differences (p=0.222).