If you like audio there's a BBC Radio Four programme called "Inside the Ethics Committee". They have a bunch of people with real world experience of medical ethics, and they take real events and walk through them, explaining what happens at each step.

http://www.bbc.co.uk/programmes/b007xbtd

It's a surprisingly tough listen. Here's one example of a child with a treatable brain tumour. He didn't like the treatment, and when he got another tumour he decided he didn't want treatment.

http://www.bbc.co.uk/programmes/b0643x61

I think it's available to people outside the UK.