TY - JOUR T1 - Risk of closed lesions in sibs of cases of open neural tube defect. JF - Journal of Medical Genetics JO - J Med Genet SP - 295 LP - 296 DO - 10.1136/jmg.14.4.295 VL - 14 IS - 4 AU - B Field Y1 - 1977/08/01 UR - http://jmg.bmj.com/content/14/4/295.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -