1. The development of cleft palate resulting from maternal pteroylglutamic (folic) acid deficiency during the latter half of gestation;Asling;Surg Gyn Obstetr,1960
2. Ernährungsprävention während der Schwangerschaft;Bergmann;Dtsch Ärztebl,1997
3. Inhibition of TGF-β3 (but not TGF-β1 or TGF-β2) activity prevents normal mouse embryonic palate fusion;Brunet;Int J Dev Biol,1995
4. Effect of supplemental vitamin therapy on the limitation of incidence of cleft lip and cleft palate in humans;Conway;Plast Reconstr Surg,1958
5. Dose-dependent effect of folic acid on the prevention of orofacial clefts;Czeizel;Pediatrics,1999