The Holy Spirit and my salvation

This story

http://www.adelaidenow.com.au/news/south-australia/judge-overrules-parents-to-save-life-of-young-south-australian-girl/story-e6frea83-1226381000568

was in the front page of the advertiser on Saturday. What do you think of the parents' decision of not allowing their daughter to have a blood transfusion? Is it a correct decision? If it is why? If it is not correct is it possible that you make such decisions and be fully convinced that you are correct?