1. Does the mechanism producing the level of basic in neural tube defects predict recurrence level, type of lesion and nsk for recurrence;Keena;Clin Res,1986
2. Distinguishing primary neurulation from canalization (secondary neurulation) defects among neural tube defects associated with teratogenic exposure;Hall,1986
3. Epidemiology of neural tube defects in Germany;Koch;Hum Genet,1984
4. Fetal immortality in sibships of cases with neural tube defects;Lippman;Clin Genet,1984
5. Fetal mortality in sibships of cases with neural tube defects;Sadovnick;Clin Genet,1986