This has been discussed a lot, in cases like Jehova's Witnesses refusal, for example in the event of pregnancy. http://jdwmed.files.wordpress.com/2009/11/ethic

This has been discussed a lot, in cases like Jehova's Witnesses refusal, for example in the event of pregnancy. http://jdwmed.files.wordpress.com/2009/11/ethics-paper4.pdf http://jdwmed.files.wordpress.com/2009/11/ethics-paper4.pdf