Budi Yulhasfi Febrianto, Eddy Sutrisno , Frank Bietra Buchari , Utama Abdi Tarigan , Hidayat 2017. The Polymorphism Identification of Reduced Folate Carrier 1 (RFC1) in Patients of Non Syndromic Cleft Lip with or Without Cleft Palate in Sumatera Utara. International Journal of Emerging Trends in Science and Technology. 4, 10 (Oct. 2017), 6279–6284.