PT - JOURNAL ARTICLE AU - R. Brian Lowry TI - Neural tube defects AID - 10.1503/cmaj.1041670 DP - 2005 Jan 18 TA - Canadian Medical Association Journal PG - 159--160 VI - 172 IP - 2 4099 - http://www.cmaj.ca/content/172/2/159.short 4100 - http://www.cmaj.ca/content/172/2/159.full SO - CMAJ2005 Jan 18; 172