amandeep kaur
"Prevalence of MTHFR 677 C-T polymorphism among mothers of Down syndrome children.".
Indian Journal of Human Genetics,
vol: 19, No. 4 Jan. 2013, pp: 412-414, https://scholar9.com/publication-detail/prevalence-of-mthfr-677-ct-polymorphism-among-mot-18609