PT - JOURNAL ARTICLE AU - Bruce W. Hollis AU - Carol L. Wagner TI - Nutritional vitamin D status during pregnancy: reasons for concern AID - 10.1503/cmaj.060149 DP - 2006 Apr 25 TA - Canadian Medical Association Journal PG - 1287--1290 VI - 174 IP - 9 4099 - http://www.cmaj.ca/content/174/9/1287.short 4100 - http://www.cmaj.ca/content/174/9/1287.full SO - CMAJ2006 Apr 25; 174