PT - JOURNAL ARTICLE ED - , TI - Vitamin D supplements: requirements in special circumstances in children DP - 1975 May 17 TA - Canadian Medical Association Journal PG - 1216--1216 VI - 112 IP - 10 4099 - http://www.cmaj.ca/content/112/10/1216.short 4100 - http://www.cmaj.ca/content/112/10/1216.full SO - CMAJ1975 May 17; 112