PT - JOURNAL ARTICLE AU - A. Chouinard TI - Free trade makes it easier to cross border--unless you're an MD DP - 1988 Aug 01 TA - Canadian Medical Association Journal PG - 247--248 VI - 139 IP - 3 4099 - http://www.cmaj.ca/content/139/3/247.short 4100 - http://www.cmaj.ca/content/139/3/247.full SO - CMAJ1988 Aug 01; 139