PT - JOURNAL ARTICLE AU - Brock, G. I. AU - Gurekas, V. TI - Selling guidelines door to door DP - 1996 Mar 15 TA - Canadian Medical Association Journal PG - 755a--756 VI - 154 IP - 6 4099 - http://www.cmaj.ca/content/154/6/755a.short 4100 - http://www.cmaj.ca/content/154/6/755a.full SO - CMAJ1996 Mar 15; 154