Folate gene polymorphism and the risk of Down syndrome pregnan-cies in young Chinese women
LIAO E-Beng, BAO Meng-Sheng, LIU Chang-Jing, LIU Hui, ZHANG Ding
HEREDITAS . 2010, (5): 461 -466 .  DOI: 10.3724/SP.J.1005.2010.00461