PT - JOURNAL ARTICLE AU - Edward J. Cormode TI - Commercial ultrasound AID - 10.1503/cmaj.110-2037 DP - 2010 Apr 06 TA - Canadian Medical Association Journal PG - 593--593-a VI - 182 IP - 6 4099 - http://www.cmaj.ca/content/182/6/593.2.short 4100 - http://www.cmaj.ca/content/182/6/593.2.full SO - CMAJ2010 Apr 06; 182