1. Periconceptional use of folic acid for reduction of the risk of neural tube defects;Paediatrics & Child Health,1997
2. Canadian Task Force on the Periodic Health Exam;Woolf,1994
3. Folic acid for the prevention of neural tube defects;Pediatries,1993
4. Po licy statement: folic acid and pregnancy, 1994;ACMG Newsletter,1995
5. Folic acid for the prevention of recurrent neural tube defects,1993