Also, a number of mutations in intron region of FTO gene were found to be associated with breast cancer risk in African-ancestry populations (rs17817449) [16], in a mixed ethnic population of Northwestern University (rs7206790, rs8047395, rs9939609, and rs1477196) [17], in ER-negative breast cancer of European ancestry population (rs11075995) [18], and in Chinese population (rs11075995) [20]. Here, FTO is linked to breast cancer.