PT - JOURNAL ARTICLE AU - Hall, Judith G. TI - Folic acid: the opportunity that still exists DP - 2000 May 30 TA - Canadian Medical Association Journal PG - 1571--1572 VI - 162 IP - 11 4099 - http://www.cmaj.ca/content/162/11/1571.short 4100 - http://www.cmaj.ca/content/162/11/1571.full SO - CMAJ2000 May 30; 162