PT - JOURNAL ARTICLE AU - K Devolder TI - Advance directives to protect embryos? AID - 10.1136/jme.2005.013607 DP - 2005 Sep 01 TA - Journal of Medical Ethics PG - 497--498 VI - 31 IP - 9 4099 - http://jme.bmj.com/content/31/9/497.short 4100 - http://jme.bmj.com/content/31/9/497.full SO - J Med Ethics2005 Sep 01; 31