PT - JOURNAL ARTICLE AU - Roger Collier TI - American entrepreneur files free trade challenge on medicare AID - 10.1503/cmaj.081703 DP - 2008 Nov 18 TA - Canadian Medical Association Journal PG - 1113--1114 VI - 179 IP - 11 4099 - http://www.cmaj.ca/content/179/11/1113.short 4100 - http://www.cmaj.ca/content/179/11/1113.full SO - CMAJ2008 Nov 18; 179