Boduroğlu K, Alanay Y, Alikaşifoğlu M, Aktaş D, Tunçbilek E. Analysis of MTHFR 1298A>C in addition to MTHFR 677C>T polymorphism as a risk factor for neural tube defects in the Turkish population. Turk J Pediatr. 2005;47(4):327-333. doi:10.24953/turkjpediatr.2005.2740