PT - JOURNAL ARTICLE AU - Barbara Sibbald TI - Court's ultrasound ruling worries Canadian MDs DP - 2002 Mar 05 TA - Canadian Medical Association Journal PG - 643--643-b VI - 166 IP - 5 4099 - http://www.cmaj.ca/content/166/5/643.3.short 4100 - http://www.cmaj.ca/content/166/5/643.3.full SO - CMAJ2002 Mar 05; 166