Recently, a case-control study conducted in Iran on 81 patients with thyroid cancer and 165 controls found that FOXE1 polymorphism (rs1867277) could be used as a biomarker for thyroid cancer diagnosis, being found in 32.1% (homozygous GG) and 18.5% (homozygous AA) of thyroid cancer patients [69]. Here, FOXE1 is linked to thyroid cancer.