Pattaraporn Wisajun. 2007. Interaction between environmental factors and maternal genes polymorphisms of folate metabolisms association with the risk of down syndrome. Field of Study Medical Sciences, Thammasat University;

Pattaraporn Wisajun. Interaction between environmental factors and maternal genes polymorphisms of folate metabolisms association with the risk of down syndrome. . Bangkok:Thammasat University, 2007.

Pattaraporn Wisajun. (2007) Interaction between environmental factors and maternal genes polymorphisms of folate metabolisms association with the risk of down syndrome . Thammasat University/Bangkok.