PT - JOURNAL ARTICLE AU - Tim Lougheed TI - New US guidelines for research on human embryos AID - 10.1503/cmaj.050641 DP - 2005 Jun 21 TA - Canadian Medical Association Journal PG - 1672--1672-a VI - 172 IP - 13 4099 - http://www.cmaj.ca/content/172/13/1672.2.short 4100 - http://www.cmaj.ca/content/172/13/1672.2.full SO - CMAJ2005 Jun 21; 172