PT - JOURNAL ARTICLE AU - Ray, Joel G. TI - Neural tube defects AID - 10.1503/cmaj.1041541 DP - 2005 Jan 18 TA - Canadian Medical Association Journal PG - 160--160 VI - 172 IP - 2 4099 - http://www.cmaj.ca/content/172/2/160.1.short 4100 - http://www.cmaj.ca/content/172/2/160.1.full SO - CMAJ2005 Jan 18; 172