PT - JOURNAL ARTICLE ED - , TI - Patently necessary: improving global access to essential medicines DP - 2003 Dec 09 TA - Canadian Medical Association Journal PG - 1257--1257 VI - 169 IP - 12 4099 - http://www.cmaj.ca/content/169/12/1257.short 4100 - http://www.cmaj.ca/content/169/12/1257.full SO - CMAJ2003 Dec 09; 169