PT - JOURNAL ARTICLE AU - Engels, Paul T. AU - Tien, Homer C. TI - The lucky penny: an illustration of the bullet rule AID - 10.1503/cmaj.110210 DP - 2012 Jan 10 TA - Canadian Medical Association Journal PG - 63--65 VI - 184 IP - 1 4099 - http://www.cmaj.ca/content/184/1/63.short 4100 - http://www.cmaj.ca/content/184/1/63.full SO - CMAJ2012 Jan 10; 184